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SID: 2019741 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 4Nov 18, 2014, 12:00 PM

ET MALWARE W32/Matsnu.Backdoor CnC Beacon

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Matsnu.Backdoor CnC Beacon"; flow:established,to_server; http.uri; content:"id="; content:"&mynum="; content:"&ver="; content:"&cvr="; content:"&threadid="; fast_pattern; content:"&lang="; content:"&os="; reference:url,www.seculert.com/blog/2014/11/dgas-a-domain-generation-evolution.html; classtype:command-and-control; sid:2019741; rev:4; metadata:attack_target Client_Endpoint, created_at 2014_11_18, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_09_28, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)

Nov 18, 2014, 12:00 PM

Sep 28, 2020, 12:00 PM

Sep 21, 2024, 3:00 AM

May 30, 2025, 12:04 AM

rules/emerging-malware.rules