""ET TROJAN Sidewinder APT Related Backdoor Activity""
SID: 2051557
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_08, deployment Perimeter, malware_family Sidewinder, confidence Medium, signature_severity Major, updated_at 2024_03_08
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "/id="
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Value: "/session="
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Value: "?/value="
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Value: !"Referer|3a 20|"
Within: 8
PCRE: "/\/return=true$/Ui"
Special Options:
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http_method
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http_uri
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http_uri
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fast_pattern
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http_uri
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http_header