""ET TROJAN CIA Ransomware - wallpaper/readme retrieval attempt""
SID: 2042950
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Any, attack_target Client_and_Server, created_at 2022_12_15, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_12_15
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "GET"
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Value: "User-Agent|3a 20|Go-http-client/"
-
Value: !"Referer|3a 20|"
Within:
PCRE: "/Host\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nAccept-Encoding\x3a\x20[^\r\n]+[\r\n]+$/H"
Special Options:
-
http_method
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fast_pattern
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http_header
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http_header