""ET TROJAN Observed Cobalt Strike CnC Domain in TLS SNI (cs .lg22l .com)""
SID: 2031469
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_31, deployment Perimeter, malware_family CobaltStrike, signature_severity Major, updated_at 2020_12_31
Reference:
-
md5
-
774419bb738a2a4fa18aacee88850d2c
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 443
Flow: established,to_server
Contents:
- Value: "|00 00 0c|cs.lg22l.com|00|"
Within:
PCRE:
Special Options:
- fast_pattern