""ET TROJAN Wintervivern Checkin""
SID: 2034108
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_10_04, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2021_10_04
Reference:
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md5
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7940c343ae91e7198acf83400b25252f
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: "vivern/"
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Value: "/getanswer.php?username="
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Value: !"Referer|3a 20|"
Within:
PCRE:
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_uri
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nocase
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http_header