""ET TROJAN Win32/IcedID Requesting Encoded Binary M5""
SID: 2031298
Revision: 4
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2020_12_08, deployment Perimeter, deployment SSLDecrypt, malware_family IcedID, performance_impact Moderate, signature_severity Major, updated_at 2020_12_18
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "__io_r=" Depth: 7
-
Value: "|3b 20|__io_vl="
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Value: "|3b 20|__io_bl="
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Value: "|3b 20|Session_id="
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Value: "|3b 20|__io_uniq="
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Value: "|3b 20|__io_f="
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Value: "HTTP/1.1|0d 0a|Connection|3a 20|Keep-Alive|0d 0a|Cookie|3a 20|__io_r="
Within:
PCRE: "/^Connection[^\r\n]+\r\nCookie[^\r\n]+\r\nHost[^\r\n]+\r\n(?:\r\n)?$/H"
Special Options:
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http_method
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http_cookie
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http_cookie
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http_cookie
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http_cookie
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http_cookie
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http_cookie