""ET TROJAN ELF/Muhstik - IRC CnC Checkin""
SID: 2029319
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Networking_Equipment, created_at 2020_01_23, deployment Perimeter, malware_family Muhstik, performance_impact Low, signature_severity Major, tag IRC, updated_at 2020_01_23
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow: established,to_server
Contents:
-
Value: "NICK|20|" Depth: 5
-
Value: "|0d|USER|20|muhstik"
-
Value: "|20 3a|muhstik-"
Within:
PCRE: "/^\d+\x0a$/R"
Special Options:
- fast_pattern