""ET TROJAN Matanbuchus Loader Server Response""
SID: 2034470
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_11_16, deployment Perimeter, malware_family Matanbuchus, signature_severity Major, updated_at 2021_11_16, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: [$HTTP_PORTS,44413]
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "HTTP/1.1 200 OK|0d 0a|" Depth: 17
-
Value: "|0d 0a 0d 0a|eyJoc3pBIjoi"
Within:
PCRE: "/(?:ifQ==|In0=|J9)$/R"
Special Options:
- fast_pattern