Rule History

SID: 2051640 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Mar 13, 2024, 12:00 PM

Message:

ET MALWARE Win32/PackedFlyStudio.AA CnC Activity (GET)

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/PackedFlyStudio.AA CnC Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; pcre:"/\x2e(?:exe|dll)$/"; http.user_agent; content:"HTTPREAD"; bsize:8; fast_pattern; http.host; pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/"; http.header_names; content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|Cache-Control|0d 0a 0d 0a|"; bsize:37; reference:url,twitter.com/Gi7w0rm/status/1767161955733696771; reference:md5,4dd98e7e42415cd8e773bb2a9eda006e; classtype:trojan-activity; sid:2051640; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_03_13, deployment Perimeter, malware_family Win32_PackedFlyStudio_AA, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_13;)

Created:

Mar 13, 2024, 12:00 PM

Updated:

Mar 13, 2024, 12:00 PM

DB Created:

Mar 13, 2024, 10:00 PM

DB Updated:

Aug 13, 2025, 9:35 PM

Filename:

rules/emerging-malware.rules