Worm.Win32.Netres.a

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Netres is a dangerous worm virus that functions only under Win32 systems. The worm spreads over local networks and copies itself to shared network drives. Some versions of the worm also copy themselves to subdirectories on the local drive and to floppy disks in the A: drive.

There are at least ten different known versions of Netres. They are all Windows PE EXE files of about 380-400Kb in size (depending on the specific worm version) and written in Delphi.

Netres copies itself with different randomly selected names, some of them have many spaces before the ".exe" extension, while most of the names are in Russian:

  • AntiVP.exe
  • NetCheck.exe
  • Free pics.htm.exe
  • 鹣油显疑 茉?jpg.exe
  • 粝 拊?下泡撂?xls.exe
  • 饔徘牧 宰涎.doc.exe
  • 榍艺鬯?exe
  • 钆 诹姓铀猎?!!.exe
  • 鹨嫌韵 艘劣勺裂 肆以晌肆.jpg.exe
  • 碚酉?doc.exe
  • ?汤孪棕?jpg.exe
  • Other names are also used that are randomly constructed from three parts - Name1 Ext1 ".exe":

  • document .exe .exe
  • Doom .jpg
  • Heretic .bat
  • hot pics .xls
  • track01 .doc
  • Delphi .log
  • C .txt
  • Pascal .mp3
  • Parus .wav
  • 1SB-Win
  • 炖律拖?
  • 下泡廖蜗?
  • 优艘旁
  • 松铀?
  • 湎苏团卧
  • 肓以?
  • for example:

  • C .exe.exe
  • C .jpg .exe
  • Doom.doc .exe
  • Heretic.mp3 .exe
  • Parus.exe .exe
  • Pascal.txt .exe
  • track01.log .exe
  • 湎苏团卧.log .exe
  • 炖律拖?doc .exe
  • 优艘旁.log .exe
  • 优艘旁.mp3 .exe
  • Netres moves all files from the Windows SYSTEM directory to a new "restop" directory:

    c:\windows\system\*.* -> c:\windows\restop\

    The worm also creates a log file and writes to this file a report logging its actions. The name of the log file depends on the specific worm version.
    Possible names are:

    C:\v1.log C:\v3.log

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