""ET TROJAN APT/Bitter CnC Exfiltration via TCP""
SID: 2036996
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 2022_06_15, deployment Perimeter, malware_family Bitter, signature_severity Major, updated_at 2023_04_04, reviewed_at 2024_01_02
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 1024:
Flow: established,to_server
Contents:
-
Value: "|00|" Depth: 1 Offset: 1
-
Value: "|00|"
-
Value: "XXXXXXXXX"
Within: 1
PCRE: "/(?:([a-zA-Z0-9]\0){10,})/R"
Special Options:
- fast_pattern