Versions (4)
Version DetailsCurrent
Rev: 2 • Aug 14, 2015, 12:00 PMET MALWARE MS Terminal Server Single Character Login possible Morto inbound
alert tcp $EXTERNAL_NET any -> $HOME_NET 3389 (msg:"ET MALWARE MS Terminal Server Single Character Login possible Morto inbound"; flow:to_server,established; content:"|03 00 00|"; depth:3; content:"|e0 00 00 00 00 00|"; offset:5; depth:6; content:"Cookie|3a| mstshash="; content:"|0d 0a|"; distance:1; within:2; nocase; pcre:"/Cookie\x3a mstshash=[a-zA-Z]\r\n/"; flowbits:set,ET.RDP.Morto; reference:cve,CAN-2001-0540; classtype:trojan-activity; sid:2021630; rev:2; metadata:created_at 2015_08_14, confidence Medium, signature_severity Major, updated_at 2019_07_26;)
Aug 14, 2015, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules