Rule History

SID: 2031452 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Dec 23, 2020, 12:00 PM

Message:

ET MALWARE Observed CobaltStrike/TEARDROP CnC Domain Domain in DNS Query

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed CobaltStrike/TEARDROP CnC Domain Domain in DNS Query"; dns_query; content:"mobilnweb.com"; nocase; depth:13; isdataat:!1,relative; reference:url,unit42.paloaltonetworks.com/solarstorm-supply-chain-attack-timeline; classtype:domain-c2; sid:2031452; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_23, deployment Perimeter, malware_family CobaltStrike, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_23;)

Created:

Dec 23, 2020, 12:00 PM

Updated:

Dec 23, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 15, 2025, 9:36 PM

Filename:

rules/emerging-malware.rules