Killsec
Also known as KillSec, Kill Security Ransomware Group
Reports
13
First seen
May 14, 2026
Last seen
Oct 5, 2026
Motivation
Financial
Relationships
Filled ◆ = CVE exploited in the wild. Entities that appear together in Signalis reporting — co-mention, not confirmed collaboration. Reports naming many actors at once (weekly roundups) are excluded from relationship edges.
Targeting
Victim regions
×1×1
India×1
Mexico×1
United States×1
Victim country, only when stated. Corpus is predominantly English-language reporting, so US/EU coverage is overweighted relative to true victim distribution.
Top ATT&CK techniques
T1486 Data Encrypted for Impact ×4T1190 Exploit Public-Facing Application ×4T1567 Exfiltration Over Web Service ×2T1005 Data from Local System ×2T1041 Exfiltration Over C2 Channel ×2T1566.001 Phishing: Spearphishing Attachment ×1T1566 Phishing ×1T1547 Boot or Logon Autostart Execution ×1T1053 Scheduled Task/Job ×1T1078 Valid Accounts ×1T1087 Account Discovery ×1T1218 System Binary Proxy Execution ×1
Indicators
cve ×139domain ×12filename ×1
Indicator values are available on Pro and via the API.
Associated CVEs
Recent reports
High