Threat Descriptons



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Trojan-Downloader.Win32.Agent.jry connects to a website to download malware, as well as opens a legitimate PDF from a legitimate site.


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

Downloader is a type of trojan that secretly downloads and runs other files from remote web or ftp sites. Usually, they try to download various trojans and backdoors and activate them on the infected system. Some worms and backdoors have downloader capabilities. Trojan-Downloader.Win32.Agent.jry arrives on the system through spammed emails as an attachment, typically named complaint.scr with the icon of a pdf file.

Registry Changes

Trojan-Downloader.Win32.Agent.jry will create the following registry entry:

  • HKLM\Software\Classes\.key


When executed, this trojan will download malware from

  • http://www.[removed].at/cms/modules/EZCMS/pictures/defailt/irs_efill.php

to %WINDIR%\svchost.exe and run it. As at 6th March 2008, the site was active and hosts Trojan-Spy.Win32.Agent.bnb.Additionally, it will download a legitimate PDF file from and open it to disguise its intentions.

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