Trojan-Downloader:W32/Small.EKV

Classification

Category :

Malware

Type :

Trojan-Downloader

Aliases :

Trojan-Downloader:W32/Small.EKV

Summary

This type of trojan secretly downloads malicious files from a remote server, then installs and executes the files.

Removal

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

Trojan-Downloader:W32/Small.EKV attempts to download and install other malware to the system. Small.EKV arrives on the system as a downloaded file of Exploit:W32/Ani.C.

Execution

Upon execution, it launches Internet Explorer by using the following hard-coded path:

  • C:\program files\Internet Explorer\Iexplore.exe

It then injects the code to Internet Explorer and proceeds to download and execute another file from the following site:

  • http://220.71.76.189/[REMOVED].exe

The site listed above is currently inaccessible as of the time of this writing.

Detection

F-Secure Anti-Virus detects this malware with the following updates:

Detection Type: PC

Database: 2007-03-29_10