""ET TROJAN Observed GhostWriter APT Related Cobalt Strike Domain (ao3 .hmgo .pw in TLS SNI)""
SID: 2035601
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2022_03_24, deployment Perimeter, malware_family Cobalt_Strike, malware_family Ghostwriter, signature_severity Major, updated_at 2022_03_24
Reference:
-
md5
-
b5525108912ee8d5f1519f1b552723e8
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 443
Flow: established,to_server
Contents:
-
Value: "|16|"
-
Value: "|01|"
-
Value: "|00 00 0b|ao3.hmgo.pw"
Within: 8
PCRE:
Special Options:
- fast_pattern