Trojan.Win32.Cryzip.a

Троянская программа, шифрующая пользовательские файлы на зараженном компьютере. Является приложением Windows. Имеет размер 1191936 байт.

Троянец представляет себой DLL-библиотеку, которая встраивается во все запущенные приложения.

После запуска троянец архивирует с паролем все найденные файлы со следующими расширениями на всех дисках зараженного компьютера:

  arh
  asm
  arj
  bas
  cdr
  cgi
  chm
  cpp
  db
  db1
  db2
  dbf
  dbt
  dbx
  doc
  dpr
  dsw
  frm
  frt
  frx
  gtd
  gz
  gzip
  jpg
  key
  kwm
  lst
  man
  mdb
  mmf
  mo
  old
  p12
  pas
  pak
  pdf
  pgp
  pl
  pwl
  pwm
  rar
  rtf
  safe
  tar
  txt
  xls
  xml
  zip
  

Вредоносная программа не архивирует файлы, находящиеся в папках со следующими именами:

  System
  System32
  

Пользовательские файлы архивируются в ZIP-архивы с паролем. В качестве пароля выбирается следующая строка:

C:\Program Files\Microsoft Visual Studio\VC98

Заархивированные файлы имеют следующий вид:

<оригинальное имя файла>_CRYPT_.zip

Зашифрованные пользовательские файлы невозможно использовать в дальнейшем, что дает возможность злоумышленникам вымогать у пострадавших денежные средства.

В папках с заархивированными файлами троянец создает файлы AUTO_ZIP_REPORT.txt примерно следующего содержания:

  OUR E-GOLD ACCOUNT: *******
  
  INSTRUCTIONS HOW TO GET YUOR FILES BACK
  READ CAREFULLY. IF YOU DO NOT UNDERSTAND, READ AGAIN.
  
  This is automated report generated by auto archiving software.
  
  Your computer catched our software while browsing illigal porn
  pages, all your documents, text files, databases was archived
  with long enought password.
  
  You can not guess the password for your archived files - password
  lenght is more then 10 symbols that makes all password recovery
  programs fail to bruteforce it (guess password by trying all
  possible combinations).
  
  Do not try to search for a program what encrypted your information - it
  is simply do not exists in your hard disk anymore.
  If you really care about documents and information in encrypted files
  you can pay using electonic currency $300.
  Reporting to police about a case will not help you, they do not know
  password. Reporting somewhere about our e-gold account will not help
  you to restore files. This is your only way to get yours files back.
  
  ------------------------------
  
  How to pay to get your information back.
  
  1. click on this link to open your free e-gold account - the first
  screen is the e-gold "terms and conditions" page. You need to
  agree to these by clicking on the "I AGREE" button on the bottom
  on the page.
  2. On the next page is the sign up form:
  1. "Account name" - here is where you name your account - tip:
  make it easy to remember (as you will be asked for it) and
  reasonably short, example, "John's e-gold", "My Money e-gold"
  or perhaps "Felix" (whatever you like, just make it easy for
  you to remember it).
  2. "User Name" - here just repeat the account name (from 1 above).
  3. "Point of Contact" - this is where you put our name, address,
  phone number and email address (any email address can be used
  here but it is recommended you use your ISP address - not a
  free hotmail, etc address).
  It is also recommended your also include a fax number
  (don't have a fax number? This company offers free fax to email
  services). Try and make it as easy as possible for e-gold to contact you.
  4. "Passphrase" - this is the most important piece of information
  connected to any e-gold account. We can not stress enough how
  important it is that your passphrase is kept safe and secure.
  5. "Turing Number Entry" - type the 6 numbers you see there into the input
  box below.
  6. The last step click "Open"
  
  On the next page it will tell you that your e-gold account number has been emailed to you.
  
  check your email - you can expect to wait up to 5 minutes for your account number
  to arrive. If it does not arrive after 5 minutes then that means the email address
  you supplied was incorrect and you will have to open another new account (go through
  and repeat what you just did above again).
  
  To buy e-gold to your account please use official exchange services
  http://www.me-gold.com/
  http://www.goldex.net/
  http://usece.com/
  
  or try to search own way with
  http://gold-pages.net/e-Gold__1MDC__Pecunix_Wizard_Links/Purchase_E-gold/index.html
  http://www.google.com/search?hl=en&q=buy+e-gold&btnG=Google+Search
  
  FINALLY when you bought e-gold you have to transfer $300 to our e-gold account.
  In next 24 hours you will recieve $1 back to your account. Transfer details
  of this $1 transfer will have a link to software that will automatically
  unzip all your files back to normal state.
  
  Next day login to your account https://www.e-gold.com/acct/login.html,
  press History and press submit, you will see LINK TO UNZIP-software.
  
  ##########################################################################
  Remember you are just $300 away from your files
  ##########################################################################
  

Специалисты «Лаборатории Касперского» предупреждают пользователей интернета о том, что необходимо быть максимально бдительными при работе с сомнительными Интернет страницами и неизвестными файлами.

Кроме того, ни в коем случае нельзя переводить деньги злоумышленникам, так как это станет для них стимулом для создания новых версий вредоносной программы.