A-Trojan 2.0

Overview

Alias

archive: Embedded EXE [Kaspersky], BackDoor-JJ [McAfee], Bck/A-Trojan.20 [Panda], destructive program [F-Prot], security risk or a "backdoor" program [F-Prot], Trj/PSW.Atrojan [Panda], Trojan.PSW.Atrojan, Trojan.PSW.Atrojan.10 [Kaspersky], Trojan.PSW.Atrojan.20 [Kaspersky], Trojan.PSW.Atrojan.b, Win32.PSW.Atrojan.20 [Computer Associates], Win32/PSW.Atrojan trojan [Eset], Win32/PSW.Atrojan.B trojan [Eset], Win32/Senha!PWS!Trojan [Computer Associates],

Category

RAT: A Remote Administration Tool, or RAT, is a Trojan that when run, provides an attacker with the capability of remotely controlling a machine via a ""client"" in the attacker's machine, and a ""server"" in the victim's machine. Examples include Back Orifice, NetBus, SubSeven, and Hack'a'tack. What happens when a server is installed in a victim's machine depends on the capabilities of the trojan, the interests of the attacker, and whether or not control of the server is ever gained by another attacker -- who might have entirely different interests. Infections by remote administration Trojans on Windows machines are becoming as frequent as viruses. One common vector is through File and Print Sharing, when home users inadvertently open up their system to the rest of the world. If an attacker has access to the hard-drive, he/she can place the trojan in the startup folder. This will run the trojan the next time the user logs in. Another common vector is when the attacker simply e-mails the trojan to the user along with a social engineering hack that convinces the user to run it against their better judgment.

Backdoor: A secret or undocumented means of getting into a computer system, or software that uses such a means to penetrate a system. Some software has a backdoor placed by the programmer to allow them to gain access to troubleshoot or change the program. Software that is classified as a "backdoor" is designed to exploit a vulnerability in a system, and open it to future access by an attacker.

Password Capture: A variant of the Key Logger that captures passwords as they are entered or transmitted. Some password capture trojans impersonate the login prompt, asking the user to provide their password.

Trojan: Any program with a hidden intent. Trojans are one of the leading causes of breaking into machines. If you pull down a program from a chat room, new group, or even from unsolicited e-mail, then the program is likely trojaned with some subversive purpose. The word Trojan can be used as a verb: To trojan a program is to add subversive functionality to an existing program. For example, a trojaned login program might be programmed to accept a certain password for any user's account that the hacker can use to log back into the system at any time. Rootkits often contain a suite of such trojaned programs.

Origins

Author

RÃGâ”¼N

Others By This Author

A-Trojan ·

Date of Origin

July, 2000

Detection and Removal

Manual Removal

Follow these steps to remove A-Trojan 2.0 from your machine. Begin by backing up your registry and your system, and/or setting a Restore Point, to prevent trouble if you make a mistake.

Stop Running Processes:

Kill these running processes with Task Manager:

Remove Files:

Remove these files (if present) with Windows Explorer:

A-311Death1.02 A-311Death1.03 A-Bnc02 A-SnIf2.0 A-Trojan A-Trojan2.0 A3I A4ZetaBeta1 A95MConcept A97MAcPoison