""ET TROJAN Cobalt Strike Activity""
SID: 2032332
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_03_25, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_03_25
Reference:
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md5
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91b9c9db4916b7e416da074e29a36082
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "/boxes?nid=" Depth: 11
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Value: !"Referer|3a 20|"
Within:
PCRE: "/^lu=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/C"
Special Options:
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http_method
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fast_pattern
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http_uri
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http_header