""ET TROJAN Mystic Stealer C2 Client Hello Packet""
SID: 2046294
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2023_06_16, deployment Perimeter, malware_family Mystic, signature_severity Major, tag Stealer, updated_at 2023_06_28
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow: established,to_server
Contents:
- Value: "|b5 19 6f 94|"
Within:
PCRE:
Special Options:
- fast_pattern