""ET TROJAN Observed Cobalt Strike Domain (abcdefghijkzz123 .servicedesks .net) in TLS SNI""
SID: 2052955
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2024_05_29, deployment Perimeter, malware_family Cobalt_Strike, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_05_29
Reference:
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md5
-
41331e4fe36a5a74a87c0eeaa0427184
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 443
Flow: established,to_server
Contents:
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Value: "|16|"
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Value: "|01|"
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Value: "|00 00 21|abcdefghijkzz123.servicedesks.net"
Within: 8
PCRE:
Special Options:
- fast_pattern