alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Windows systeminfo Microsoft Windows DOS prompt command exit OUTBOUND"; flow:established,to_server; content:"Host Name|3a|"; content:"OS Name|3a|"; content:"OS Version|3a|"; content:"OS Manufacturer|3a|"; content:"Microsoft Corporation"; distance:0; content:"OS Configuration|3a|"; content:"OS Build Type|3a|"; content:"Registered Owner|3a|"; content:"Registered Organization|3a|"; content:"Product ID|3a|"; content:"Original Install Date|3a|"; content:"System Up Time|3a|"; content:"System Manufacturer|3a|"; content:"System Model|3a|"; content:"System type|3a|"; content:"Processor|28|s|29 3a|"; reference:md5,a22af4fc7fe011069704a15296634ca6; classtype:trojan-activity; sid:2019002; rev:1; metadata:created_at 2014_08_26, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)