""ET TROJAN APT15/NICKEL KETRUM CnC Activity (POST)""
SID: 2034633
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_12_08, deployment Perimeter, malware_family APT15, signature_severity Major, updated_at 2021_12_08
Reference:
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: "POST"
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Value: "/index.html?q=" Depth: 14
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Value: "Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"
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Value: !"Referer|3a 20|"
Within:
PCRE: "/^Connection\x3a\x20[^\r\n]+\r\nPragma\x3a\x20[^\r\n]+\r\nContent-Type\x3a\x20[^\r\n]+\r\n/Hm"
Special Options:
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http_method
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http_uri
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fast_pattern
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http_header
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http_header