""ET TROJAN Observed Malicious SSL Cert (Ursnif Injects)""
SID: 2033703
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 2021_08_10, deployment Perimeter, malware_family ursnif, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2021_08_10, 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: 443
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
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Value: "|16|"
-
Value: "|0b|"
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Value: "|06 03 55 04 03|"
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Value: "inbizintesansanpaolo.com"
Within: 8
PCRE:
Special Options: