alert http $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET WEB_CLIENT Hex Obfuscation of substr %u UTF-16 Encoding"; flow:established,to_client; content:"%u7375%u6273%u7472"; 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:2012271; rev:3; 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 substr %u UTF-16 Encoding"; flow:established,to_client; content:"%u7375%u6273%u7472"; 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:2012271; rev:1;)

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

alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET WEB_CLIENT Hex Obfuscation of substr %u UTF-16 Encoding"; flow:established,to_client; content:"%u7375%u6273%u7472"; 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:2012271; rev:1;)

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