alert http $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET WEB_CLIENT Hex Obfuscation of unescape % Encoding"; flow:established,to_client; content:"%75%6e%65%73%63%61%70%65"; nocase; reference:url,cansecwest.com/slides07/csw07-nazario.pdf; reference:url,www.sophos.com/security/technical-papers/malware_with_your_mocha.html; classtype:bad-unknown; sid:2012266; rev:4; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, deployment Perimeter, tag Web_Client_Attacks, signature_severity Major, created_at 2011_02_03, updated_at 2016_07_01;)

Added 2017-08-07 21:05:23 UTC


alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET WEB_CLIENT Hex Obfuscation of unescape % Encoding"; flow:established,to_client; content:"%75%6e%65%73%63%61%70%65"; nocase; fast_pattern:only; reference:url,cansecwest.com/slides07/csw07-nazario.pdf; reference:url,www.sophos.com/security/technical-papers/malware_with_your_mocha.html; classtype:bad-unknown; sid:2012266; rev:1;)

Added 2011-10-12 19:33:51 UTC

This tiggers FP for emergingthreats.net download of signature files (SID rules)

-- JimMcKibben - 2015-08-11


alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET WEB_CLIENT Hex Obfuscation of unescape % Encoding"; flow:established,to_client; content:"%75%6e%65%73%63%61%70%65"; nocase; fast_pattern:only; classtype:bad-unknown; reference:url,cansecwest.com/slides07/csw07-nazario.pdf; reference:url,www.sophos.com/security/technical-papers/malware_with_your_mocha.html; sid:2012266; rev:1;)

Added 2011-02-04 17:32:12 UTC


Topic revision: r2 - 2015-08-11 - JimMcKibben
 
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