""ET EXPLOIT Possible DOUBLEPULSAR Beacon Response""
SID: 2024216
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2017_04_17, deployment Perimeter, deployment Internal, signature_severity Major, tag c2, updated_at 2017_04_17, 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: $HOME_NET
Source Port: 445
Destination Network: any
Destination Port: any
Flow: from_server,established
Contents:
-
Value: "|00 00 00 23 ff|SMB2|02 00 00 c0 98 07 c0 00 00|" Depth: 18
-
Value: "|00 00 00 08 ff fe 00 08|"
-
Value: "|00 00 00|"
Within: 3
PCRE: "/^[\x50-\x59]/R"
Special Options:
- fast_pattern