alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WORM W32/Rimecud /qvod/ff.txt Checkin"; flow:established,to_server; content:"/qvod/ff.txt"; http_uri; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Worm%3AWin32%2FRimecud; reference:md5,f97e1c4aefbd2595fcfeb0f482c47517; reference:md5,f96a29bcf6cba870efd8f7dd9344c39e; reference:md5,fae8675502d909d6b546c111625bcfba; classtype:trojan-activity; sid:2014401; rev:2; metadata:created_at 2012_03_20, signature_severity Major, updated_at 2019_07_26;)