Threat Description

Virus: ​W32/Gpcode.AK

Details

Category: Malware
Type: Virus
Platform: W32
Aliases: Virus.Win32.Gpcode.AK

Summary


Gpcode.AK is "ransom-ware" that intends to extort money from the victim by encrypting data files. It requires the victim to order the malware author's custom tool to restore the encrypted data.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More scanning & removal options

More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.



Technical Details


Gpcode.AK searches drives C to Z for the following file types on the system:

  • 7z
  • abd
  • abk
  • acad
  • ace
  • arh
  • arj
  • arx
  • asm
  • bak
  • bcb
  • bz
  • bz2
  • c
  • cc
  • cdb
  • cdr
  • cdw
  • cer
  • cgi
  • chm
  • cnt
  • cpp
  • css
  • csv
  • db
  • db1
  • db2
  • db3
  • db4
  • dba
  • dbb
  • dbc
  • dbd
  • dbe
  • dbf
  • dbm
  • dbo
  • dbq
  • dbt
  • dbt
  • dbx
  • djvu
  • doc
  • dok
  • dpr
  • dwg
  • dxf
  • ebd
  • eml
  • eni
  • ert
  • fax
  • fjs
  • flb
  • frg
  • frm
  • frt
  • frx
  • gfa
  • gfd
  • gfr
  • gtd
  • gz
  • gzip
  • h
  • hpp
  • htm
  • html
  • iges
  • igs
  • inc
  • jad
  • jar
  • java
  • jfi
  • jpe
  • jpeg
  • jpg
  • jsp
  • key
  • kwm
  • ldiflst
  • ldr
  • lsp
  • lzh
  • lzw
  • man
  • mdb
  • mht
  • mmf
  • mnb
  • mns
  • mnu
  • mo
  • msb
  • msg
  • mxl
  • old
  • p12
  • pak
  • pas
  • pdf
  • pem
  • pfx
  • pgp
  • php
  • php3
  • php4
  • pl
  • pm3
  • pm4
  • pm5
  • pm6
  • prf
  • prx
  • pst
  • pw
  • pwa
  • pwl
  • pwm
  • rar
  • rmr
  • rnd
  • rtf
  • safesar
  • sig
  • sql
  • tar
  • tbb
  • tbb
  • tbk
  • tdf
  • tgz
  • txt
  • uue
  • vb
  • vcf
  • wab
  • xls
  • xml

It then encrypts the discovered files using an RSA algorithm and renames them with a ._CRYPT extention and deletes the original files. As a ransom note, it drops the file !_READ_ME_!.txt to the directory that requires the victim to buy a custom decrypting tool from the malware author.





Description Created: 2008-06-08 22:03:26.0

Description Last Modified: 2008-06-09 12:36:25.0


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