NF – Known Gamarue alias Andromeda BotNet – Unknown sinkhole owner

This alert is triggered when a device within the internal network attempts to establish a TCP connection with IP address 204.11.56.48, which is associated with the Gamarue (also known as Andromeda) botnet. This botnet is known for distributing malware and engaging in malicious activities.

Categories:

ID Number

5025289

Signature

alert tcp $HOME_NET any -> 204.11.56.48 any (msg:"NF - Known Gamarue alias Andromeda BotNet - Unknown sinkhole owner"; flow:to_server,established; detection_filter:track by_dst, count 2, seconds 5; reference:url,networkforensic.dk; metadata:05122017; classtype:trojan-activity; sid:5025289; rev:2;)

Severity

High

Recommendations/Investigative actions

Block communication to the botnet IP. Identify the device attempting the connection and run a comprehensive malware scan on the device to check for Gamarue/Andromeda or other potential infections.