""ET TROJAN Possible Kelihos.F EXE Download Common Structure""
SID: 2017598
Revision: 6
Class Type: trojan-activity
Metadata: created_at 2013_10_15, updated_at 2014_05_01
Reference:
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md5
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f5bcc28e7868a68e473373d684a8c54a
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: to_server,established
Contents:
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Value: "GET"
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Value: ".exe"
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Value: !"Referer|3a 20|"
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Value: !"Accept|3a 20|"
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Value: !"User-Agent|3a 20|"
Within:
PCRE: "/^Host\x3A\x20[0-9]{1,3}\x2E[0-9]{1,3}\x2E[0-9]{1,3}\x2E[0-9]{1,3}\x0D\x0A\x0D?\x0A?$/H"
Special Options:
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http_method
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http_uri
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http_header
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http_header
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http_header