#alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED W32/Bifrose Second Stage Obfuscated Binary Download Claiming to Be JPEG"; flow:established,to_client; content:"Content-Type|3A 20|image/jpeg"; http_header; file_data; content:"|54 48 00 F7 20 10 72 6F 67 52|"; content:"|61 6E 6E 4F 1D A4 62 05 20 72 75 4E 49 ED 6E 40 44 4F 53|"; fast_pattern; within:50; classtype:trojan-activity; sid:2013796; rev:7; metadata:created_at 2011_10_24, updated_at 2011_10_24;)

Added 2017-08-07 21:07:04 UTC


#alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED W32/Bifrose Second Stage Obfuscated Binary Download Claiming to Be JPEG"; flow:established,to_client; content:"Content-Type|3A 20|image/jpeg"; http_header; file_data; content:"|54 48 00 F7 20 10 72 6F 67 52|"; content:"|61 6E 6E 4F 1D A4 62 05 20 72 75 4E 49 ED 6E 40 44 4F 53|"; fast_pattern; within:50; classtype:trojan-activity; sid:2013796; rev:7;)

Added 2014-09-15 18:30:47 UTC


alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET CURRENT_EVENTS W32/Bifrose Second Stage Obfuscated Binary Download Claiming to Be JPEG"; flow:established,to_client; content:"Content-Type|3A 20|image/jpeg"; http_header; file_data; content:"|54 48 00 F7 20 10 72 6F 67 52|"; distance:0; content:"|61 6E 6E 4F 1D A4 62 05 20 72 75 4E 49 ED 6E 40 44 4F 53|"; fast_pattern; within:50; classtype:trojan-activity; sid:2013796; rev:2;)

Added 2012-11-07 18:23:16 UTC


alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET CURRENT_EVENTS W32/Bifrose Second Stage Obfuscated Binary Download Claiming to Be JPEG"; flow:established,to_client; content:"Content-Type|3A 20|image/jpeg"; http_header; file_data; content:"|54 48 00 F7 20 10 72 6F 67 52|"; distance:0; content:"|61 6E 6E 4F 1D A4 62 05 20 72 75 4E 49 ED 6E 40 44 4F 53|"; within:50; classtype:trojan-activity; sid:2013796; rev:1;)

Added 2011-10-24 14:48:54 UTC


Topic revision: r1 - 2017-08-08 - TWikiGuest
 
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