Your browser is obsolete!

The page may not load correctly.

Free trial
Dr.Web for Android

Defend what you create

Other Resources

Close

Library
My library

+ Add to library

Contact us
24/7 Tech support

Send a message

Call us

+7 (495) 789-45-86

Forum
Profile

Back to news

Encryption Trojan attacks Spain and France

March 13, 2013

Russian anti-virus company Doctor Web has registered an ongoing massive spread of the encryption malware Trojan.ArchiveLock across PCs outside Russia. The program, dubbed Trojan.ArchiveLock.20, is infecting increasingly more computers in France and Spain.

Last August, Doctor Web issued a warning about Trojan.ArchiveLock encryption malware. This program uses the archiver WinRAR to encrypt files. To spread the malware, criminals mount a brute force attack via the RDP protocol on target machines. Once connected to the attacked PC, cybercriminals launch the Trojan. After gaining control, Trojan.ArchiveLock.20 copies the encryption application to one of the system folders.

Trojan.ArchiveLock.20 then creates a list of files to be encrypted, empties the Recycle Bin, and deletes all backups stored on the computer. The Trojan uses the console version of WinRAR to place files on the compiled list into password-protected, self-extracting archives and employs a special utility to delete original files, after which they simply can't be restored.

An archive protection password can be up to 50 characters long. Then Trojan.ArchiveLock.20 displays a message offering the password needed to extract the files from the archive in exchange for 5,000 USD and advising the user to contact technical support via one of the following email addresses:

  • sec777999@gmail.com,
  • sec222555@gmail.com,
  • sec333888@gmail.com,
  • sec333888@gmail.com,
  • ausec222999@gmail.com,
  • sec777999@gmail.com,
  • casec222777@gmail.com,
  • auidhelp@gmail.com,
  • sec777999@gmail.com,
  • sec222555@gmail.com,
  • sec333888@gmail.com,
  • ausec222999@gmail.com,
  • casec222777@gmail.com,
  • auidhelp@gmail.com,
  • usidhelp2@gmail.com,
  • frsechelp@gmail.com,
  • spainsec1@gmail.com,
  • spainsec2@gmail.com.

screen

A significant number of systems have now been compromised by the Trojan in Spain and France: over the past 48 hours, Doctor Web's technical support has gotten dozens of requests from people whose files have been encrypted by Trojan.ArchiveLock.20, and such requests are still being received. Even though the ransom demand message claims that the password can't be cracked, in many cases the hash function sha1 allows files to be decrypted, something Doctor Web reported on in August 2012.

Doctor Web recommends that under no circumstances should users whose systems have been infected with Trojan.ArchiveLock.20 delete any files from the hard disk or try to reinstall the operating system. To decrypt the compromised files, you can contact Doctor Web by submitting a ticket in the Request for Curing category. This service is provided free of charge.

Tell us what you think

You will be awarded one Dr.Webling per comment. To ask Doctor Web’s site administration about a news item, enter @admin at the beginning of your comment. If your question is for the author of one of the comments, put @ before their names.


Other comments

The Russian developer of Dr.Web anti-viruses

Doctor Web has been developing anti-virus software since 1992

Dr.Web is trusted by users around the world in 200+ countries

The company has delivered an anti-virus as a service since 2007

24/7 tech support

© Doctor Web
2003 — 2017

Doctor Web is the Russian developer of Dr.Web anti-virus software. Dr.Web anti-virus software has been developed since 1992.

2-12А, 3rd street Yamskogo polya, Moscow, Russia, 125040