Snort mailing list archives
Tumblr redirect update
From: James Lay <jlay () slave-tothe-box net>
Date: Fri, 06 Jul 2012 09:30:12 -0600
Team, The bad guys have added an additional method for this from the previous version: var yvkq='http'; var gql='://e'; function vfti(hzo,dpq){return hzo+dpq} var ojty=vfti(yvkq,gql);var ujh='card'; var rgl='5-l'; function izhm(nac,rww){return nac+rww} var imqv=izhm(ujh,rgl);var fyy='ove'; var qptv='r.c'; function rgjdww(zsb,uqi){return zsb+uqi} var eavjam=rgjdww(fyy,qptv);var uqv='om/?'; var cew='EUKM'; function wlwq(vzm,deb){return vzm+deb} var uelj=wlwq(uqv,cew);var cozw='lNO'; var gpp='R'; function zmkh(vkj,mov){return vkj+mov} var peqo=zmkh(cozw,gpp); var bzsd=ojty+imqv+eavjam+uelj+peqo; document.location = bzsd and the new version: var bwl='htt'; var jwu='p://'; function relz(dgk,cpy){return dgk+cpy} var bgbr=relz(bwl,jwu);var daih='ecar'; var zpd='d3-'; function eettgr(xyl,too){return xyl+too} var sdiocl=eettgr(daih,zpd);var xand='love'; var max='r.co'; function sccfhz(krs,mre){return krs+mre} var abbghb=sccfhz(xand,max);var khd='m/?5'; var esd='Mzo'; var zcl='GyEy'; function frmy(jxx,sbe,onn){return jxx+sbe+onn} var qpyj=frmy(khd,esd,zcl); var otoa=bgbr+sdiocl+abbghb+qpyj; document.location = otoa The below Snort sig should match the previous method and the new one: alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"WEB-CLIENT Tumblr spam redirect"; flow:from_server; file_data; content:"='htt"; content:"://"; within: 15; metadata:policy security-ips drop, service http; classtype:bad-unknown; sid:XXXXXXX; reference: malwareandmore.blogspot.com/2012/06/tumblr-redirects.html; rev:2;) Thank you. James ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Snort-sigs mailing list Snort-sigs () lists sourceforge net https://lists.sourceforge.net/lists/listinfo/snort-sigs http://www.snort.org Please visit http://blog.snort.org for the latest news about Snort!
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- Tumblr redirect update James Lay (Jul 06)