Virus Profile: W32/Sytro.worm.gen!p2p!1F53EE1488FF

Threat Search
Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 3/26/2013
Date Added: 3/27/2013
Origin: Unknown
Length: 201082
Type: Trojan
Subtype: Win32
DAT Required: 7025
Removal Instructions


This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Indication of Infection

This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

Methods of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.


Virus Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionW32/Sytro.worm.gen!p2p
Length201082 bytes

Other Common Detection Aliases

Company NamesDetection Names
AVG (GriSoft)Worm/Generic3.DDF

Other brands and names may be claimed as the property of others.

ActivitiesRisk Levels
Enumerates many system files and directories.Low
No digital signature is presentInformational

McAfee ScansScan Detections
McAfee BetaW32/Sytro.worm.gen!p2p
McAfee SupportedW32/Sytro.worm.gen!p2p

System Changes

Some path values have been replaced with environment variables as the exact location may vary with different configurations.
%WINDIR% = \WINDOWS (Windows 9x/ME/XP/Vista/7), \WINNT (Windows NT/2000)
%PROGRAMFILES% = \Program Files

The following files were analyzed:


The following files have been added to the system:

  • %TEMP%\KaZaA media desktop v2.0 UNOFFICIAL.exe
  • %TEMP%\Macromedia Flash 5.0 Full Downloader.exe
  • %TEMP%\Britney spears nude.exe
  • %TEMP%\ key generator (WORKS!!).exe
  • %TEMP%\Zidane-ScreenInstaler.exe
  • %TEMP%\Star Wars Episode 2 - Attack Of The Clones Full Downloader.exe
  • %TEMP%\Macromedia key generator (all products).exe
  • %TEMP%\Microsoft key generator, works for ALL microsoft products!!.exe
  • %TEMP%\Gladiator FullDownloader.exe
  • %TEMP%\Windows XP Full Downloader.exe
  • %TEMP%\Warcraft 3 ONLINE key generator.exe
  • %TEMP%\DivX.exe
  • %TEMP%\Microsoft Windows XP crack pack.exe
  • %TEMP%\[DiVX] Lord of The Rings Full Downloader.exe
  • %TEMP%\Sony Play station boot disc - Downloader.exe
  • %TEMP%\Winrar + crack.exe
  • %TEMP%\Warcraft 3 serial generator.exe
  • %TEMP%\DSL Modem Uncapper.exe
  • %TEMP%\MoviezChannelsInstaler.exe
  • %WINDIR%\dextor32.exe
  • %TEMP%\How To Hack Websites.exe
  • %TEMP%\StarWars2 - CloneAttack - FullDownloader.exe
  • %TEMP%\MSN Password Hacker and Stealer.exe
  • %TEMP%\ZoneAlarm Firewall Full Downloader.exe
  • %TEMP%\[DiVX] Harry Potter And The Sorcerors Stone Full Downloader.exe
  • %TEMP%\Spiderman FullDownloader.exe
  • %TEMP%\AikaQuest3Hentai FullDownloader.exe
  • %TEMP%\CKY3 - Bam Margera World Industries Alien Workshop Full Downloader.exe
  • %TEMP%\Jenna Jameson - Built For Speed Downloader.exe
  • %TEMP%\Hack into any computer!!.exe
  • %TEMP%\LordOfTheRings-FullDownloader.exe
  • %TEMP%\GTA3 crack.exe
  • %TEMP%\Half-life WON key generator.exe
  • %TEMP%\Cat Attacks Child Full Downloader.exe
  • %TEMP%\Windows XP serial generator.exe
  • %TEMP%\Hacking Tool Collection.exe
  • %TEMP%\Half-life ONLINE key generator.exe
  • %TEMP%\Key generator for all windows XP versions.exe
  • %TEMP%\Quake 4 BETA.exe
  • %TEMP%\Star wars episode 2 downloader.exe
  • %TEMP%\Windows XP key generator.exe
  • %TEMP%\Grand theft auto 3 CD1 crack.exe
  • %TEMP%\SIMS FullDownloader.exe
  • %TEMP%\AIM Account Stealer Downloader.exe
  • %TEMP%\Winzip 8.0 + serial.exe
  • %TEMP%\PS1 Boot Disc Full Dwonloader.exe
  • %TEMP%\Borland Delphi 6 Key Generator.exe
  • %TEMP%\Shakira FullDownloader.exe
  • %TEMP%\ScaryMovie 2 Full Downloader.exe
  • %TEMP%\Internet and Computer Speed Booster.exe
  • %TEMP%\

The following registry elements have been created:



All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.

On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.


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