Troj/Clunky-A is a backdoor Trojan for the Windows platform.
Troj/Clunky-A opens up a backdoor port on the infected computer allowing unauthorised remote access. The Trojan can be used to download and run arbitrary files.
Troj/Clunky-A copies itself to the Windows system folder as "IEXPLORER.EXE", "adslcom.exe" and "adslcomdos.exe". The Trojan creates the non-malicious files "wincontxt.dll" and "Adslcom.sys" in the system folder and "msfport.dll" in the Windows folder for its own use.
Troj/Clunky-A creates the following registry entry in order to run automatically on computer log on:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\
SyncMon
<Windows system folder>\adslcomdos.exe