alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET TROJAN Karagany/Kazy Obfuscated Payload Download"; flow:established,to_client; content:"Content-Disposition|3a| "; http_header; content:"windows-update-"; fast_pattern; http_header; distance:0; content:".exe"; distance:0; http_header; file_data; content:!"MZ"; within:2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FKaragany.I; reference:url,www.virustotal.com/file/6c7ae03b8b660826f0c58bbec4208bf03e704201131b3b5c5709e5837bfdd218/analysis/1334672726/; classtype:trojan-activity; sid:2014230; rev:4;)

Added 2012-04-17 21:48:39 UTC


alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET TROJAN Unknown Loader Obfuscated exe Payload Download"; flow:established,to_client; content:"Content-Disposition|3a| "; http_header; content:"windows-update-"; fast_pattern; http_header; distance:0; content:".exe"; distance:0; http_header; file_data; content:!"MZ"; within:2; classtype:trojan-activity; sid:2014230; rev:3;)

Added 2012-03-31 09:36:54 UTC


alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET TROJAN Unknown Loader Obfuscated exe Payload Download"; flow:established,to_server; content:"Content-Disposition|3a| "; http_header; content:"windows-update-"; http_header; distance:0; content:".exe"; distance:0; http_header; file_data; content:!"MZ"; within:2; classtype:trojan-activity; sid:2014230; rev:2;)

Added 2012-02-16 16:48:05 UTC


Topic revision: r1 - 2012-04-18 - TWikiGuest
 
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