Avira Virus Lab


  • Name
  • Date discovered
    Dec 14, 2015
  • Type
  • Impact
  • Reported Infections
  • Operating System
  • VDF version (2015-12-08 13:05)

Stay safe from all these threats with Avira Free Antivirus.

Avira Free Antivirus Download Free

The term 'TR' denotes a trojan horse that is able to spy out data, to violate your privacy or carry out unwanted modifications to the system.

  • VDF (2015-12-08 13:05)
  • Aliases
    Avast: Win32:Malware-gen
    AVG: Generic37.ABO
    Dr. Web: Trojan.Nymaim.20
    Microsoft: DDoS:Win32/Nitol.B
    G Data: Gen:Variant.Zusy.172669
    Kaspersky Lab: Trojan.Win32.Fsysna.cluz
    Bitdefender: Gen:Variant.Zusy.172669
    ESET: Win32/Agent.WPO trojan
  • Files
    The following files are created:
    • %DISKDRIVE%\Documents and Settings\All Users\work.log
    • %DISKDRIVE%\Documents and Settings\All Users\Windows-KB523842.exe
    The following files are changed:
    • %temporary internet files%\Content.IE5\index.dat
    • %USERPROFILE%\Cookies\index.dat
    • %USERPROFILE%\Local Settings\History\History.IE5\index.dat
    • %temporary internet files%\Content.IE5\5KMEPSXE\dotnetfx35setup[1].exe
  • Registry
    The following registry entries are added:
    • HKEY_CURRENT_CONFIG\Software\Microsoft\windows\CurrentVersion\Internet Settings ("ProxyEnable": dword:00000000)
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\ServiceCurrent (@: dword:00000012)
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_CLR_OPTIMIZATION_V4.0.30319_32\0000\Control ("ActiveService": "clr_optimization_v4.0.30319_32")
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\clr_optimization_v4.0.30319_32 ("Start": dword:00000002)
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_MSISERVER\0000\Control ("ActiveService": "MSIServer")

Help make the web safer by sending us suspicious files/URLs to analyze

Submit your file/URL or Go to support.avira.com

Why submit a suspicious file?

If you encountered a suspicious file or website that’s not in our database, we’ll analyze it and determine whether it’s harmful. Our findings are then pushed out to our millions of users with their next virus database update. If you have Avira, you’ll get that update too. Don’t have Avira? Get it on our homepage.