""ET TROJAN WS/JS Downloader Mar 07 2017 M1""
SID: 2024035
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_03_08, deployment Perimeter, signature_severity Major, updated_at 2017_03_17
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "/counter/"
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Value: !"Referer|3a|"
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Value: !"Cookie|3a|"
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Value: "MSIE 7.0"
Within:
PCRE: "/\/counter\/(?:\?[a-z]?\d{1,2}$|[^\x2f]\d.exe$|.??=(?=[A-Z0-9_-]{0,200}[a-z][A-Z0-9_-]{0,200}[a-z])(?=[a-z0-9_-]{0,200}[A-Z][a-z0-9_-]{0,200}[A-Z])[A-Za-z0-9_-]{50,}(?:&|$))/U"
Special Options:
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http_uri
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http_header
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http_header