JFVKCSY.BAT - Dangerous

What you should do about JFVKCSY.BAT:

Your PC may be infected. The presence of a file called JFVKCSY.BAT is a possible sign of infection.

You should urgently check your PC to make sure it is not infected. The free version of Prevx CSI will scan your PC in less than two minutes and check for millions of spyware and malware infections including JFVKCSY.BAT. Don't take the risk, check your PC now.

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What we know about JFVKCSY.BAT:

The filename JFVKCSY.BAT was first seen on Apr 29 2008 in The EUROPEAN UNION. It has also been seen in the following geographical regions of the Prevx community:

  • EGYPT on May 2 2008
  • The UNITED KINGDOM on May 2 2008
  • ALGERIA on May 15 2008
  • SPAIN on May 15 2008
  • BRAZIL on May 17 2008
The filename JFVKCSY.BAT refers to many versions of an executable program.

The most common file size is 260,796 bytes. But the following file sizes have also been seen:

  • 133,120 bytes
  • 104,448 bytes
  • 124,928 bytes
  • 104,269 bytes
  • 13,836 bytes

The unsafe files using this name are associated with the malware group KAVKOP:Trojan-A.

 These files have no vendor, product or version information specified in the file header.

JFVKCSY.BAT has been seen to perform the following behavior(s):

  • The Process is packed and/or encrypted using a software packing process
  • Registers a Dynamic Link Library File
  • This Process Creates Other Processes On Disk
  • This Process Deletes Other Processes From Disk
  • Executes a Process
  • Injects code into other processes
  • This Process looks to see what security products and services are running on the system
  • Disables safe mode on your PC
  • Looks at the contents of the autoexec.bat file
  • Reads email address and phone book details
  • Uses DNS to retrieve the IP address for web sites
  • Adds a Registry Key (RUN) to auto start Programs on system start up
  • Writes to another Process's Virtual Memory (Process Hijacking)
  • Visits web sites on your PC without you knowing
  • The Process is polymorphic and can change its structure

JFVKCSY.BAT has been the subject of the following behavior(s):

  • Added as a Registry auto start to load Program on Boot up
  • Executed as a Process
  • Created as a process on disk
  • Copied to multiple locations on the system
  • Deleted as a process from disk
  • Has code inserted into its Virtual Memory space by other programs

JFVKCSY.BAT can also use the following file names:

  • AMVO.EXE
  • DPTRNO~1.EXE
  • DPTRDWQAFT-593.PMS.EXE
  • DPTRDW~1.EXE
  • 80251344.SVD
  • DPTRNW~1.EXE
  • DPTRDSWTRL-607.PMS.EXE
  • 8A98C7B7BCEACBCACEF17DB26F455737.EXE
  • 8A98C7B7BCEACBCACEF17DB26F455737.BAT
  • DPTRDS~1.EXE
  • 16219554.SVD

Virus, Spyware & Malware Center