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  6. Trojan-Downloader.Win32.Agent.jry

Trojan-Downloader.Win32.Agent.jry

Name : Trojan-Downloader.Win32.Agent.jry
Size:147,256
Category:Malware
Type:Trojan-Downloader
Platform:W32

Summary

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

Additional 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

Payload

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 http://www.irs.gov/pub/irs-pdf/f3949a.pdf and open it to disguise its intentions.