Campaign SpyGlace: APT-C-60’s Stealthy Zero-Day Offensive Targeting East Asia’s Cyber Ecosystem

Indicators of Compromise

APT Groups

Notes

<span id="docs-internal-guid-5cf5ce6c-7fff-9de0-b547-4e8c81b60593"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 13pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">CONCLUSION</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">APT-C-60's "SpyGlace Campaign" represents a serious cyber threat. This operation takes advantage of zero-day vulnerabilities in WPS Office to execute a covert and highly targeted espionage effort. By exploiting these weaknesses, the group employed the SpyGlace backdoor to establish long-term access to sensitive data in East Asia. The campaign used phishing emails to transmit malicious documents, showing us that social engineering combined with advanced exploitation techniques is still a very real and ongoing danger. This operation highlights the continued risks posed by state-sponsored cyber activity, especially against regions and sectors that are important to us all.<a href="https://socradar.io/solutions/phishing-domain-detection/"> </a></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(17, 85, 204); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; text-decoration-line: underline; vertical-align: baseline;"><a href="https://socradar.io/solutions/phishing-domain-detection/">Phishing Domain Detection</a></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;"> on the SOCRadar platform is a tool to help you protect yourself from such cyber threats. You should also take a look at our article </span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(17, 85, 204); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; text-decoration-line: underline; vertical-align: baseline;"><a href="https://socradar.io/how-to-identify-spear-phishing-attacks/">How to Identify Spear Phishing Attacks</a></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">?</span></p><div><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;"><br></span></div></span>

Mitigation

<span id="docs-internal-guid-cc13dca5-7fff-181f-696e-56bfc03e2f08"><br><div style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 13pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">MITIGATION</span></div><div style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span id="docs-internal-guid-f3cea7f5-7fff-642b-d270-d267ae306418"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">T1203 - Exploitation for Client Execution</span></p><br><div style="margin-left:0pt;" align="left"><table style="border:none;border-collapse:collapse;"><colgroup><col><col><col></colgroup><tbody><tr style="height:37.75pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">ID</span></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Mitigation</span></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Description</span></p></td></tr><tr style="height:82pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1048"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1048</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1048"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Application Isolation and Sandboxing</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:12pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Browser sandboxes can be used to mitigate some of the impact of exploitation, but sandbox escapes may still exist. </span><a href="https://blogs.windows.com/msedgedev/2017/03/23/strengthening-microsoft-edge-sandbox/"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[94]</span></a><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;"> </span><a href="https://arstechnica.com/information-technology/2017/03/hack-that-escapes-vm-by-exploiting-edge-browser-fetches-105000-at-pwn2own/"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[95]</span></a></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Other types of virtualization and application microsegmentation may also mitigate the impact of client-side exploitation. Risks of additional exploits and weaknesses in those systems may still exist. </span><a href="https://arstechnica.com/information-technology/2017/03/hack-that-escapes-vm-by-exploiting-edge-browser-fetches-105000-at-pwn2own/"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[95]</span></a></p></td></tr><tr style="height:69.25pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1050"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1050</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1050"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Exploit Protection</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Security applications that look for behavior used during exploitation such as Windows Defender Exploit Guard (WDEG) and the Enhanced Mitigation Experience Toolkit (EMET) can be used to mitigate some exploitation behavior. </span><a href="https://blogs.technet.microsoft.com/srd/2017/08/09/moving-beyond-emet-ii-windows-defender-exploit-guard/"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[96]</span></a><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;"> Control flow integrity checking is another way to potentially identify and stop a software exploit from occurring. </span><a href="https://en.wikipedia.org/wiki/Control-flow_integrity"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[97]</span></a><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;"> Many of these protections depend on the architecture and target application binary for compatibility.</span></p></td></tr></tbody></table></div><br><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">T1566.001 - Phishing: Spearphishing Attachment</span></p><br><div style="margin-left:0pt;" align="left"><table style="border:none;border-collapse:collapse;"><colgroup><col><col><col></colgroup><tbody><tr style="height:37.75pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">ID</span></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Mitigation</span></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Description</span></p></td></tr><tr style="height:43pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1049"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1049</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1049"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Antivirus/Antimalware</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Anti-virus can also automatically quarantine suspicious files.</span></p></td></tr><tr style="height:55.75pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1031"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1031</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1031"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Network Intrusion Prevention</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Network intrusion prevention systems and systems designed to scan and remove malicious email attachments can be used to block activity.</span></p></td></tr><tr style="height:69.25pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1021"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1021</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1021"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Restrict Web-Based Content</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Block unknown or unused attachments by default that should not be transmitted over email as a best practice to prevent some vectors, such as .scr, .exe, .pif, .cpl, etc. Some email scanning devices can open and analyze compressed and encrypted formats, such as zip and rar that may be used to conceal malicious attachments.</span></p></td></tr><tr style="height:69.25pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1054"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1054</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1054"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Software Configuration</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Use anti-spoofing and email authentication mechanisms to filter messages based on validity checks of the sender domain (using SPF) and integrity of messages (using DKIM). Enabling these mechanisms within an organization (through policies such as DMARC) may enable recipients (intra-org and cross domain) to perform similar message filtering and validation.</span><a href="https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/anti-spoofing-protection?view=o365-worldwide"><span style="font-size: 7pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[255]</span></a><a href="https://www.cyber.gov.au/sites/default/files/2019-03/spoof_email_sender_policy_framework.pdf"><span style="font-size: 7pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[256]</span></a></p></td></tr><tr style="height:42.25pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1017"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1017</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1017"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">User Training</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Users can be trained to identify social engineering techniques and spearphishing emails.</span></p></td></tr></tbody></table></div><br><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(0, 0, 0); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">T1059.001 - Command and Scripting Interpreter: PowerShell</span></p><br><div style="margin-left:0pt;" align="left"><table style="border:none;border-collapse:collapse;"><colgroup><col><col><col></colgroup><tbody><tr style="height:38.25pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">ID</span></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Mitigation</span></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dee2e6 1.5pt;border-top:solid #dfdfdf 0.75pt;vertical-align:bottom;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;text-align: center;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 12pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Description</span></p></td></tr><tr style="height:43pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1049"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1049</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1049"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Antivirus/Antimalware</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dee2e6 1.5pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Anti-virus can be used to automatically quarantine suspicious files.</span></p></td></tr><tr style="height:42.25pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1045"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1045</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1045"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Code Signing</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Set PowerShell execution policy to execute only signed scripts.</span></p></td></tr><tr style="height:81.25pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1042"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1042</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1042"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Disable or Remove Feature or Program</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:12pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">It may be possible to remove PowerShell from systems when not needed, but a review should be performed to assess the impact to an environment, since it could be in use for many legitimate purposes and administrative functions.</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Disable/restrict the WinRM Service to help prevent uses of PowerShell for remote execution.</span></p></td></tr><tr style="height:55.75pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1038"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1038</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1038"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Execution Prevention</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Use application control where appropriate. PowerShell Constrained Language mode can be used to restrict access to sensitive or otherwise dangerous language elements such as those used to execute arbitrary Windows APIs or files (e.g., </span><span style="font-size: 10pt; font-family: &quot; color: rgb(28, 34, 38); background-color: rgb(230, 230, 230); font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Add-Type</span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">).</span><a href="https://devblogs.microsoft.com/powershell/powershell-constrained-language-mode/"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[270]</span></a></p></td></tr><tr style="height:94.75pt;"><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1026"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">M1026</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><a href="https://attack.mitre.org/mitigations/M1026"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">Privileged Account Management</span></a></p></td><td style="border-left:solid #dfdfdf 0.75pt;border-right:solid #dfdfdf 0.75pt;border-bottom:solid #dfdfdf 0.75pt;border-top:solid #dfdfdf 0.75pt;vertical-align:top;background-color:#f2f2f2;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><p style="line-height:1.38;margin-top:0pt;margin-bottom:12pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">When PowerShell is necessary, consider restricting PowerShell execution policy to administrators. Be aware that there are methods of bypassing the PowerShell execution policy, depending on environment configuration.</span><a href="https://blog.netspi.com/15-ways-to-bypass-the-powershell-execution-policy/"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[271]</span></a></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(33, 37, 41); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">PowerShell JEA (Just Enough Administration) may also be used to sandbox administration and limit what commands admins/users can execute through remote PowerShell sessions.</span><a href="https://learn.microsoft.com/powershell/scripting/learn/remoting/jea/overview?view=powershell-7.3"><span style="font-size: 10pt; font-family: Arial, sans-serif; color: rgb(79, 124, 172); background-color: transparent; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-variant-position: normal; vertical-align: baseline;">[272]</span></a></p></td></tr></tbody></table></div></span></div></span>