""ET TROJAN Observed Malicious SSL Cert (CoreBot C2)""
SID: 2025485
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_and_Server, created_at 2018_04_11, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2018_04_12, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol
Reference:
-
md5
-
75368c9240a3c238aa3b5518906a3cdb
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: 443
Destination Network: $HOME_NET
Destination Port: any
Flow: established,from_server
Contents:
-
Value: "|55 04 03|"
-
Value: "|0e|ok.investments"
Within: 18
PCRE:
Special Options:
- fast_pattern