Sigma Watch is free and independent. If it saves you time, keep it running. ☕ Buy me a coffee
SigmaWatch
Ransomware

FIN8

Ransomware Needs review 32 detections found
This entry hasn't been reviewed yet. It was auto-detected from the MITRE ATT&CK catalog because it self-identifies as ransomware-type malware, but no one has curated a full summary or double-checked its reference links. Treat the details below as a starting point, not a verified profile.

Also known as: FIN8, Syssphinx

Auto-detected from the MITRE ATT&CK catalog on 2026-09-28 (G0061) - this entry has not been reviewed or curated yet. See the MITRE ATT&CK link below for what's currently known; a proper summary and authoritative eradication references are pending.

Detection & eradication references

Curated links to authoritative sources — MITRE ATT&CK, CISA advisories, law-enforcement takedown announcements, and vendor threat-intel writeups — for removal, remediation, and further technical detail. Sigma Watch does not publish its own removal steps here, since malware behavior and tooling change too fast for a static write-up to stay reliably accurate.

Detection rules

Source Rule Status Updated
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Lookup rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Lookup rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Lookup rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Lookup rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Query rev 3 2020-09-17
suricata ET MALWARE FIN8 ShellTea CnC in DNS Lookup rev 3 2020-09-17
suricata ET MALWARE [GIGAMON_ATR] FIN8 BADHATCH Remote Shell Banner rev 1 2019-07-26
snort ET TROJAN [GIGAMON_ATR] FIN8 BADHATCH Remote Shell Banner rev 1 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Query rev 2 2019-07-23
snort ET TROJAN FIN8 ShellTea CnC in DNS Lookup rev 2 2019-06-13
snort ET TROJAN FIN8 ShellTea CnC in DNS Lookup rev 2 2019-06-13
snort ET TROJAN FIN8 ShellTea CnC in DNS Lookup rev 2 2019-06-13
snort ET TROJAN FIN8 ShellTea CnC in DNS Lookup rev 2 2019-06-13
snort ET TROJAN FIN8 ShellTea CnC in DNS Lookup rev 2 2019-06-13