""ET CURRENT_EVENTS Nemucod JS Downloader June 12 2017""
SID: 2024380
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_06_13, deployment Perimeter, malware_family Nemucod, performance_impact Low, signature_severity Major, tag WS_JS_Downloader, updated_at 2017_06_13
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "Accept|3a 20 2a 2f 2a 0d 0a|Accept-Language|3a|" Depth: 29
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Value: "Firefox/51.0"
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Value: !"Referer|3a|"
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Value: !"Cookie|3a|"
Within:
PCRE: "/\/[A-Za-z0-9]{5,7}\?+[A-Za-z0-9]{6,12}=[A-Za-z0-9]{6,12}$/U"
Special Options:
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http_header
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http_header
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fast_pattern
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http_header