The Trojan-Downloader.Win32.Small.cqf refers to is a Win32 Trojan that communicates and access the Internet via HTTP. The Trojan-Downloader.Win32.Small.cqf installs its files within the registry. It can affect the Windows (9x, 2000, XP, and Vista). This Trojan replicates its files into the hard drive using the file Trojan-Downloader.Win32.Small.cqf and the process name tmp_2q3.exe.
Trojan-Downloader.Win32.Small.cqf Penetrating Methods
Upon installation, the Trojan-Downloader.Win32.Small.cqf replicates its files within the Windows\ System32 folder using the main executable file tmp_2q3.exe, and produces another file utilized to activate its files upon Windows start-up, win_s.dll. To execute its operation upon boot-up, it uses the following registry keys:
• SOFTWARE\ Microsoft\ Windows NT\ CurrentVersion\ Windows
Using the value: AppInit_DLLs
How to Avoid Trojan-Downloader.Win32.Small.cqf Infection
It is necessary to activate the firewall to stop malicious files from connecting to the internet, which might be utilized to broadcast numerous threats in the system. Put into practice the regular system clean up and defragmentation, as well as download updates for the security application.
Trojan-Downloader.Win32.Small.cqf Infection Symptoms
The Trojan-Downloader.Win32.Small.cqf may exploit the systems’ security. This indicates a program or network vulnerability will be exploited upon the execution of the Trojan, particularly Microsoft applications. This exploit mostly targets a programming inaccuracy or loophole of a program, which permits the remote invader to gain access to the target system. This Trojan is a Windows PE EXE sleeve.
Trojan-Downloader.Win32.Small.cqf Effects
Upon implementation, the Trojan-Downloader.Win32.Small.cqf may link to a pre-distinct URL to download malicious programs. The downloaded files are saved within specific folder. When the Trojan-Downloader.Win32.Small.cqf is active on the system, it downloads spontaneous files. A downloader is a dedicated application exclusively for this operation. This Trojan downloads and installs code without authorization. A mean downloader connects to isolated servers and downloads destructive worms or viruses to contaminate the system.
The Trojan-Downloader.Win32.Small.cqf verifies the path of the Internet Explorer using system registry. Then, the infection checks if it is working already in the context processes of Internet Explorer. Hence, a new instance of Internet Explorer is made and the virus loads and runs itself beneath the Internet Explorer process and runs as a library.
Easy Trojan-Downloader.Win32.Small.cqf Removal
To remove the Trojan-Downloader.Win32.Small.cqf, run a full system scan using Avast!, True Sword, or AVG software. Delete all files detected by the program that are link to the Trojan and other threats as well. After finishing the scan, restart the system.
How to Remove Trojan-Downloader.Win32.Small.cqf
To manually remove the Trojan-Downloader.Win32.Small.cqf, try to manage the registry using Registry Editor and delete the following files, values and keys:
• SOFTWARE\ Microsoft\ Windows NT\ CurrentVersion\ Windows
• AppInit_DLLs
• tmp_2q3.exe
• win_s.dll
How to Remove & Avoid Trojan-Downloader.Win32.Small.cqf Infection 
