Name: AcidHead Category: RAT Alias: BackDoor-AHL, Backdoor.Acidhead.10 Advice: Remove Risk: Elevated Risk Elevated threats are usually threats that fall into the range of adware in which data about a user's habits are tracked and sent back to a server for analysis without your consent or knowledge. Description: Signatures: process: cilent.exe: MD5 Hash: d77a6d953706d7a56af... process: server.exe: MD5 Hash: dcebd90034bbbf13baf.. Type: RAT - A Remote Administration Tool (RAT) is a Trojan type of software that when run, provides an attacker with the capability of remotely controlling a user's computer (victim) over the Internet. The attacker usually has full access to functions on the victim's computer. The victim's computer usually listens on the Internet for the attacker's commands.