We first posted about the Security Tool virus on this website last September 23,2009. Since then we have received numerous inquiries from computer users who got infected with this rogue program. A Security Tool virus removal is requested. Some relies on the Internet and search for the removal. Little did they know that one wrong click from the search results will give them another headache.

TrojanDownloader.Agent.OSQ is a detection for trojan that can download and execute a potentially unwanted program on computer. Trojan Downloader.Agent.OSQ also further harm an infected computer by downloading additional malware and redirect web browsers to a fake security websites. Aliases: – Risk Level: Low File Size: Varies Affected System: Windows

Trojan.Win32.Agent.azsy is a dangerous computer infection that may drop several threats on the system. This Trojan may attempt to communicate to a remote server to download more malware. Trojan.Win32.Agent.azsy can also steal sensitive information when executed on the computer.

NTOSKRNL-HOOK is a detection for technique used by Rootkit Trojan and be able to hide malicious files and process from Windows and security programs. NTOSKRNL-HOOK Rootkit are  programs that can be utilized by malware authors to conceal malicious files from being seen during a real-time scanning of security programs.

Mal Vundo-9 is a dangerous Trojan that was developed to spread fake antivirus application. This is a generic detection for a family of Trojan that serves similar payloads. It is capable of executing remote malicious files and downloads more malware from various specified locations.

Win32.Vitro is a computer Trojan that can be acquired by visiting maliciously created web sites. Legitimate web sites that are also compromised by a Trojan may also distribute Win32.Vitro to target computer. It will enter the system through security breach and security weaknesses.

BOO/Sinowal.C is a master boot record (MBR) virus that will make the system unstable. BOO/Sinowal.C requires a boot sector utility software to be able to restore the boot sector record.

Trojan-Downloader.Win32.Small.dge is a trojan that will download other programs via the Internet and install them on the victim computer without the user’s knowledge. Trojan-Downloader.Win32.Small.dge is also detected as a threat by a bogus security application if the scanner report was shown is similar in the image below.