Rule History

alert udp $HOME_NET [!1720,!1722,!2222,!2427,!5060,1024:] -> $EXTERNAL_NET [!1720,!1722,!2427,!5060,1024:] (msg:"ET MALWARE Possible KEYPLUG/Downadup/Conficker-C P2P encrypted traffic UDP Ping Packet (bit value 1)"; dsize:>19; byte_test:1, &, 1, 19; threshold: type both, track by_src, count 95, seconds 50; reference:url,mtc.sri.com/Conficker/addendumC/; reference:url,www.mandiant.com/resources/apt41-us-state-governments; reference:md5,b82456963d04f44e83442b6393face47; classtype:trojan-activity; sid:2009205; rev:5; metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, updated_at 2019_07_26;)