Rule History

SID: 2021430 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 4 • Jul 16, 2015, 12:00 PM

Message:

ET MALWARE Possible IE MSMXL Detection of Local SYS (Likely Malicious)

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible IE MSMXL Detection of Local SYS (Likely Malicious)"; flow:established,from_server; file_data; content:"res|3a|"; nocase; content:"loadXML"; nocase; content:"parseError"; nocase; content:"errorCode"; nocase; content:"-2147023083"; fast_pattern; content:".sys"; classtype:trojan-activity; sid:2021430; rev:4; metadata:created_at 2015_07_16, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_08;)

Created:

Jul 16, 2015, 12:00 PM

Updated:

Oct 8, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Nov 10, 2025, 10:34 PM

Filename:

rules/emerging-malware.rules