TightVNC

TightVNC is a remote administration tool and is used for legitimate remote access purposes, but, under the wrong hands and combined with a worm or trojan, it can turn into a serious security threat. A worm or trojan infection can use TightVNC for malicious purposes such as remotely control and monitor an infected system without the user's consent. Once the remote administration tool has been successfully installed and launched by the worm or trojan, the user's machine is accessible to the remote hacker. TightVNC is not the malware infection, but if you're computer has been compromised it is advised that you detect and remove remote administration tools that have been used illegally.