Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed BlackGuard_v2 Domain in DNS Lookup (onetwostep .at)"; dns.query; content:"onetwostep.at"; fast_pattern; reference:url,www.zscaler.com/blogs/security-research/analysis-blackguard-new-info-stealer-malware-being-sold-russian-hacking; reference:url,blog.cyble.com/2022/04/01/dissecting-blackguard-info-stealer/; classtype:trojan-activity; sid:2035714; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_01, deployment Perimeter, deprecation_reason Relevance, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_10;)