""ET TROJAN ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex)""
SID: 2022279
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_and_Server, created_at 2015_12_18, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2015_12_18, reviewed_at 2024_04_15, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: any
Destination Network: $HOME_NET
Destination Port: any
Flow: established,from_server
Contents:
-
Value: "|16|"
-
Value: "|0b|"
-
Value: "|09 00|"
-
Value: "|30 09 06 03 55 04 06 13 02|CH|31|"
-
Value: !"|55 04 08|"
-
Value: !"|55 04 07|"
-
Value: "|55 04 0a|"
-
Value: "|55 04 03|"
Within: 25
PCRE: "/^.{2}[a-z]{5,}.[a-z]{2,3}[01]/R"
Special Options:
- fast_pattern