killsec3
Ransomware group profile
232Victims
RussiaSource country
72Impact score
Also Known As
KillSecurity
Description
KillSec is a notorious ransomware group that has gained prominence for its aggressive attacks on critical infrastructure across various sectors. Known for employing advanced tactics, including double extortion methods, they encrypt data and threaten to leak sensitive information if ransom demands are not met. Their operations have increasingly targeted industries with less robust cybersecurity defenses, causing widespread disruption and financial damage.
Key insights
- •Targets critical infrastructure, particularly in healthcare and finance sectors.
- •Utilizes advanced obfuscation techniques to avoid detection.
- •Employed double extortion tactics, encrypting data and threatening leaks.
- •Gains access through spearphishing and exploiting software vulnerabilities.
- •Recent campaigns have increasingly used sophisticated ransomware variants.
- •Emerging trend involves leveraging zero-day vulnerabilities for attacks.
Threat Level & Status Breakdown
For killsec3 · Based on incidents in selected period
2.8threat level
Aggressiveness5/ 10
Lethality0/ 10
Criticality3.4/ 10
Status Breakdown
Data Leaked0.4%1
Negotiating0.9%2
Claimed15.1%35
First seenAug 2025
Last seenJun 2026
Avg ransom—
Payment rate—
Statusactive
Sophistication0
Last updatedJun 25, 2026
Recent activity
Monthly attack count for killsec3 in the selected period
232Total attacks
168peak in Oct
23.2avg / month
Intelligence
IOCs, YARA/Sigma rules, and related families for killsec3
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TTPs & Attack Vectors
Tools, initial access, and MITRE ATT&CK techniques for killsec3
Other
T1486
T1486
T1490
T1490
T1566.002
T1566.002
T1059.001
T1059.001
T1047
T1047
T1078
T1078
T1562
T1562
T1021
T1021
T1021.001
T1021.001
T1071.001
T1071.001
Victims(200)
| Company | Domain | Country | Industry | Status | Discovered | |
|---|---|---|---|---|---|---|
| csinsurance.mx | — | MX Mexico | Financial Services | Unknown | 24 days ago | |
| acehospital.in | — | IN India | Healthcare | Unknown | 24 days ago | |
| dsdlawfirm.com | — | — | Professional Services | Unknown | about 1 month ago | |
| mrs holdings | — | — | Professional Services | Unknown | about 2 months ago | |
| Medical PAY | — | — | Financial Services | Unknown | about 2 months ago | |
| hospitalvetdiadema24h.com.br | — | BR Brazil | Healthcare | Unknown | 3 months ago | |
| palram.com | — | IL Israel | Manufacturing | Unknown | 3 months ago | |
| shlomo bit | — | — | — | Unknown | 4 months ago | |
| MyFair | — | — | — | Unknown | 4 months ago | |
| MedicalGPT | — | — | Healthcare | Unknown | 4 months ago | |
| yurdriversnetwork | — | — | Transportation | Unknown | 4 months ago | |
| primaria ungheni | — | RO Romania | Government & Defense | Unknown | 4 months ago | |
| Onlinedivorcetexas | onlinedivorcetexas.com | US United States | Retail & E-Commerce | Unknown | 4 months ago | |
| Orain | orain.io | US United States | Financial Services | Unknown | 4 months ago | |
| Getly | — | — | — | Unknown | 5 months ago | |
| brooklyn group | — | — | Retail & E-Commerce | Unknown | 5 months ago | |
| X-CD Technologies | — | — | Technology | Unknown | 5 months ago | |
| NextCapitalTrust | — | — | Financial Services | Unknown | 6 months ago | |
| publicsafety.ohio.gov | — | US United States | Government & Defense | Unknown | 6 months ago | |
| grade results | — | — | Education | Unknown | 6 months ago |
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Affected countries(68)
Countries where this group has been reported to target or leak victims.
🇦🇪United Arab Emirates🇦🇷Argentina🇦🇺Australia🇧🇩Bangladesh🇧🇪BelgiumBolivia, Plurinational State of🇧🇷Brazil🇧🇼Botswana🇨🇦Canada🇨🇭Switzerland🇨🇱Chile🇨🇳China🇨🇴Colombia🇨🇾Cyprus🇩🇪Germany🇩🇰Denmark🇩🇿Algeria🇪🇬Egypt🇪🇸Spain🇪🇹Ethiopia🇫🇮Finland🇫🇷France🇬🇧United Kingdom🇬🇪GeorgiaGuernsey🇬🇷Greece🇭🇰Hong Kong🇮🇩Indonesia🇮🇪Ireland🇮🇱Israel🇮🇳India🇮🇹Italy🇯🇲Jamaica🇯🇵Japan🇰🇪Kenya🇰🇲ComorosKorea, Republic ofCayman Islands🇱🇾Libya🇲🇦MoroccoMoldova, Republic ofMacao🇲🇽Mexico🇲🇾Malaysia🇳🇬Nigeria🇳🇱Netherlands🇳🇴Norway🇳🇵Nepal🇳🇿New Zealand🇵🇪Peru🇵🇱PolandPuerto Rico🇵🇹Portugal🇷🇴RomaniaRussian Federation🇸🇦Saudi Arabia🇸🇪Sweden🇸🇬Singapore🇹🇭Thailand🇹🇳Tunisia🇹🇷Turkey🇺🇦Ukraine🇺🇸United StatesVirgin Islands, British🇻🇳Vietnam🇻🇺Vanuatu🇿🇦South Africa🇿🇲Zambia