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Virus:W32/Gpcode.AK

Classification

Category: Malware

Type: Virus

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

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

Knowledge Base

Find the latest advice in our Community Knowledge Base.

About the product

See the manual for your F-Secure product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

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