What is it?
re_file.exe is associated with the w32.beagle.ar@mm mass mailing worm.

What does it do?
W32.Beagle.AR@mm is a mass-mailing worm that uses its own SMTP engine to spread. The email attachment is a downloader, similar to the Mitglieder family of Trojans, that downloads the worm from an external source.

When W32.Beagle.AR@mm runs, it does the following:

1. Creates seven mutexes with the following names, which prevent some variants of the W32.Netsky@mm family of worms from running:
   • MuXxXxTENYKSDesignedAsTheFollowerOfSkynet-D
   • 'D'r'o'p'p'e'd'S'k'y'N'e't'
   • _-oOaxX|-+S+-+k+-+y+-+N+-+e+-+t+-|XxKOo-_
   • [SkyNet.cz]SystemsMutex
   • AdmSkynetJklS003
   • ____--->>>>U<<<<--____
   • _-oO]xX|-S-k-y-N-e-t-|Xx[Oo-_
2. Creates the following files:
   
   • %System%awindo.exe.
   • %System%awindo.exeopen (A copy of the worm with randomly appended data.)
   • %System%awindo.exeopenopen (A copy of the worm with randomly appended data.)
   • %System% e_file.exe
3. Adds a value:
   
   
   "bawindo"="%System%awindo.exe"
   
   to the registry key:
   
   HKEY_CURRENT_USERSOFTWAREMicrosoftWindowsCurrentVersionRun

Attempts to create copies of itself in any folder that contains the characters "shar". The files will have the following file names:

• Microsoft Office 2003 Crack, Working!.exe
• Microsoft Windows XP, WinXP Crack, working Keygen.exe
• Microsoft Office XP working Crack, Keygen.exe
• Porno, sex, oral, anal cool, awesome!!.exe
• Porno Screensaver.scr
• Serials.txt.exe
• KAV 5.0
• Kaspersky Antivirus 5.0
• Porno pics arhive, xxx.exe
• Windows Sourcecode update.doc.exe
• Ahead Nero 7.exe
• Windown Longhorn Beta Leak.exe
• Opera 8 New!.exe
• XXX hardcore images.exe
• WinAmp 6 New!.exe
• WinAmp 5 Pro Keygen Crack Update.exe
• Adobe Photoshop 9 full.exe
• Matrix 3 Revolution English Subtitles.exe
• ACDSee 9.exe

More info and Removal
@symantec