""ET TROJAN Upatre External IP Check""
SID: 2020370
Revision: 3
Class Type: trojan-activity
Metadata: created_at 2015_02_05, updated_at 2015_02_10
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "GET"
-
Value: !"Accept-"
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Value: !"Referer|3a|"
-
Value: "checkip.dyndns.org"
Within:
PCRE: "/^(?:Accept\x3a\x20text\/*, application\/*\r\n)?User-Agent\x3a[^\r\n\x3b\x28\x29]+\r\nHost\x3a[^\r\n]+checkip.dyndns.org\r\nCache-Control\x3a[^\r\n]+\r\n(?:\r\n)?$/H"
Special Options:
-
http_method
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http_header
-
http_header
-
http_header