""ET TROJAN Observed Malicious SSL Cert (CobaltStrike CnC)""
SID: 2030867
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2020_09_14, deployment Perimeter, malware_family Cobalt_Strike, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2020_09_14, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities
Reference:
-
md5
-
f3ead1eef8ee0d3b4aceaef10b7b4a9c
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: 443
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
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Value: "|55 04 03|"
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Value: "|0b|peernew.com"
Within: 12
PCRE:
Special Options:
- fast_pattern