Troj_Artief.D is a Trojan that arrives as an attachment to email messages spammed by another malware or a malicious user.

The said .EXE file, which bears the icon of files related to certain applications, is also detected as TROJ_ARTIEF.D.

Upon execution, it displays a message box, which tricks a user into thinking that it is a non-malicious file.

It then drops a file in the Windows Temporary folder, also detected by Trend Micro as TROJ_ARTIEF.D.The said .DLL file is injected into a hidden Internet Explorer process.

This Trojan accesses a URL to download a file which is detected by Trend Micro as TROJ_AGENT.UEW. As a result, routines of the downloaded file may be exhibited on the system.

Technical details can be found at this Trend Micro page.