ET ADWARE_PUP MySideSearch Browser Optimizer

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET ADWARE_PUP MySideSearch Browser Optimizer";
    flow:established,to_server;
    http.method;
    content:"GET"; nocase;
    http.uri;
    content:".php?aff="; nocase;
    content:"&act="; nocase;
    http.user_agent;
    content:"NSISDL/1.2 (Mozilla)"; nocase; depth:20;
    reference:url,www.spywareremove.com/removeMySideSearch.html;
    reference:url,www.threatexpert.com/threats/adware-win32-mysidesearch.html;
    reference:url,www.pctools.com/mrc/infections/id/Adware.MySideSearch/;
    classtype:pup-activity;
    sid:2009524; rev:10;
    metadata:created_at 2010_07_30, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_19;
)