Back to Rule

Rule History

SID: 2025583 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 4May 23, 2018, 12:00 PM

ET MALWARE [PTsecurity] PS/TrojanDownloader.Agent.NNR XORed Zip payload (key 0x91)

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE [PTsecurity] PS/TrojanDownloader.Agent.NNR XORed Zip payload (key 0x91)"; flow:established,from_server; http.stat_code; content:"200"; file.data; content:"|c1 da 92 95 85 91 91 99 99 91|"; depth:10; fast_pattern; reference:url,dctoralves.wordpress.com/2018/05/03/phishing-report-policia-civil/; classtype:trojan-activity; sid:2025583; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_05_23, deployment Perimeter, malware_family PS_TrojanDownloader_Agent_NNR, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_25;)

May 23, 2018, 12:00 PM

Aug 25, 2020, 12:00 PM

Sep 21, 2024, 3:00 AM

Sep 29, 2025, 9:34 PM

rules/emerging-malware.rules