""ET TROJAN ELF/Muhstik Botnet CnC Activity""
SID: 2034743
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_12_15, deployment Perimeter, malware_family Muhstik, signature_severity Major, updated_at 2021_12_15
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 1024:
Flow: established,to_server
Contents:
-
Value: "NICK|20|"
-
Value: "USER|20|"
-
Value: "|3a|muhstik-"
Within:
PCRE: "/^[0-9]{8}$/Rm"
Special Options:
- fast_pattern