Name:	Back Construction
Aliases:
Ports:	21, 666, 5400, 5401, 5402 (ports can not be changed)
Files:	Back12.zip - 374,919 bytes Back15.zip - 425,599 bytes Back21.zip - 431,945 bytes Back25.zip - 447,210 bytes Client.exe - 208,896 bytes Client.exe - 258,048 bytes Client.exe - 267,264 bytes Client.exe - 270,848 bytes Server.exe - 177,664 bytes Server.exe - 179,200 bytes Server.exe - 179,712 bytes Server.exe - 189,440 bytes Cmctl32.exe - Cmctl32.exe - Cmctl32.exe -
Created:	June 1999
Requires:	N/A
Actions:	Remote Access / FTP server
Versions:	1.0, 1.1, 1.2, 1.5, 2.1, 2.5,
Registers:	HU\Default\Software\Microsoft\Windows\CurrentVersion\Run\ HLM\SOFTWARE\Microsoft\General\Settings\
Notes:	Works on Windows 95 and 98.
Country:	N/A
Program:	N/A

Using the Process Monitor from AATools, you will see whether any foreign programs are running on your computer. If you find some unwanted program, you can terminate it by clicking the 'Terminate Process' button on the Toolbar. Using the AATools Network Monitor, you can see what ports are in use on your local PC for connection with remote systems (LAN/Internet). On Windows NT/2000/XP the Network Monitor will display you the services that are active on the ports, and map the ports to their respective applications. If you register port probes directed against ports that are normally not used, it is possible that someone is trying to connect to a Trojan inside your network. Using the Registry Cleaner (Startup section) from AATools, you will see the list of programs that are registered under Run, RunOnce, RunOnceEx and RunService registry keys. So you can find out what programs are started behind your back. You should check these programs to see they are legitimate ones but not Trojans programs.

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If you have any questions or information about ports used by Trojans not listed above, please contact us.