Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Decrypt files encripted by Dirty Decrypter


  • This topic is locked This topic is locked
10 replies to this topic

#1 Barnack

Barnack

  • Members
  • 91 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Italy
  • Local time:07:02 PM

Posted 04 August 2013 - 08:01 AM

Hello all!

Sorry, i don't know if that's the correct place to post this.

 

 

I'm new, sorry if my english is bad, but i'm not so good handling this language.

However, i caught the virus that in italy is called "polizia di stato" (state police), and i know that it's almost the same of the american virus of FBI, as i understood looking around in the net.

I manually deleted it.

Howevere 2 other viruses came in my computer at the same time:

one with a VARIABLE name, and Dirty Decripter.

The first disabled Task Manager and all the ways to reactive it, but i was able to delete every copy it made of himself in my computer.

I removed also Dirty Decrypter, and actually, there aren't more than 50% of .doc/.xls files encrypted by it.

Now, there is only one doc and only one excell file that i need, and they are encrypted. After that, i looked around in the net to find some decrypters, but no one of them worked correctly.

I'd like to know if there is a working decripter to solve the problem. If not, and if in this forum there are some developers, i think that can be helpful somethig i have:

2 wersions of the same file, one version encrypted, and the other with the SAME contents but not-encrypted, and i have them shurely for .doc, and maybe also for .xls.

Starting with theese couples of files should be possible to make a decrypter, but at this step, i need help, because i'm no more than a noob in programming. Obviously, if a decrypter already exist, i'd like to heave the link!

 

Thanks you all for the help

 



BC AdBot (Login to Remove)

 


#2 HelpBot

HelpBot

    Bleepin' Binary Bot


  • Bots
  • 12,733 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:01:02 PM

Posted 09 August 2013 - 08:05 AM

Hello and welcome to Bleeping Computer!

I am HelpBot: an automated program designed to help the Bleeping Computer Staff better assist you! This message contains very important information, so please read through all of it before doing anything.

We apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up. Please note that your topic was not intentionally overlooked. Our mission is to help everyone in need, but sometimes it takes just a little longer to get to every request for help. No one is ignored here.

To help Bleeping Computer better assist you please perform the following steps:

***************************************************

step1.gif In order to continue receiving help at BleepingComputer.com, YOU MUST tell me if you still need help or if your issue has already been resolved on your own or through another resource! To tell me this, please click on the following link and follow the instructions there.

CLICK THIS LINK >>> http://www.bleepingcomputer.com/logreply/503305 <<< CLICK THIS LINK



If you no longer need help, then all you needed to do was the previous instructions of telling me so. You can skip the rest of this post. If you do need help please continue with Step 2 below.

***************************************************

step2.gifIf you still need help, I would like you to post a Reply to this topic (click the "Add Reply" button in the lower right hand of this page). In that reply, please include the following information:

  • If you have not done so already, include a clear description of the problems you're having, along with any steps you may have performed so far.
  • A new DDS log. For your convenience, you will find the instructions for generating these logs repeated at the bottom of this post.
    • Please do this even if you have previously posted logs for us.
    • If you were unable to produce the logs originally please try once more.
    • If you are unable to create a log please provide detailed information about your installed Windows Operating System including the Version, Edition and if it is a 32bit or a 64bit system.
    • If you are unsure about any of these characteristics just post what you can and we will guide you.
  • Please tell us if you have your original Windows CD/DVD available.
  • Upon completing the above steps and posting a reply, another staff member will review your topic and do their best to resolve your issues.

Thank you for your patience, and again sorry for the delay.

***************************************************

We need to see some information about what is happening in your machine. Please perform the following scan again:

  • Download DDS by sUBs from the following link if you no longer have it available and save it to your destop.

    DDS.com Download Link
  • Double click on the DDS icon, allow it to run.
  • A small box will open, with an explanation about the tool. No input is needed, the scan is running.
  • Notepad will open with the results.
  • Follow the instructions that pop up for posting the results.
  • Close the program window, and delete the program from your desktop.
Please note: You may have to disable any script protection running if the scan fails to run. After downloading the tool, disconnect from the internet and disable all antivirus protection. Run the scan, enable your A/V and reconnect to the internet.

Information on A/V control can be found HERE.

As I am just a silly little program running on the BleepingComputer.com servers, please do not send me private messages as I do not know how to read and reply to them! Thanks!

#3 HelpBot

HelpBot

    Bleepin' Binary Bot


  • Bots
  • 12,733 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:01:02 PM

Posted 14 August 2013 - 08:10 AM

Hello again!

I haven't heard from you in 5 days. Therefore, I am going to assume that you no longer need our help, and close this topic.

If you do still need help, please send a Private Message to any Moderator within the next five days. Be sure to include a link to your topic in your Private Message.

Thank you for using Bleeping Computer, and have a great day!

#4 Andrew

Andrew

    Bleepin' Night Watchman


  • Moderator
  • 8,260 posts
  • ONLINE
  •  
  • Gender:Not Telling
  • Location:Right behind you
  • Local time:10:02 AM

Posted 18 August 2013 - 02:59 PM

This topic has been re-opened at the request of the person who originally posted.

#5 oneof4

oneof4

  • Malware Response Team
  • 3,779 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:The Collective
  • Local time:01:02 PM

Posted 19 August 2013 - 04:02 PM

Hello Barnack, and  :welcome: to the Virus/Trojan/Spyware/Malware Removal forum.

I am oneof4, and I am here to help you!

  • I ask that you refrain from running tools other than those I suggest to you while I am cleaning up your computer. The reason for this is so I know what is going on with the machine at any time. Some programs can interfere with others and hamper the recovery process.
  • Please perform all steps in the order received and do not proceed if you need clarification.
  • Please copy and paste all logs into your post unless directed otherwise. Please do not re-run any programs I suggest. If you encounter problems please stop and tell me about it. When your computer is clean I will alert you of such. I will also provide you with detailed suggestions for prevention.
  • At the top right-center  of the topic you will see a button called Watch Topic. If you click on this, another page will open. Please choose Immediate Notification and then clicking on Proceed you will be advised when we respond to your topic and facilitate the cleaning of your machine.
  • If after 5 days you have not replied to this topic, I will assume it has been abandoned, and I will close it.
  • I would also like to inform you that most of us here at Bleeping Computer offer our expert assistance out of the goodness of our hearts. :heart: Please be courteous and appreciative for the assistance provided!
  • Again I would like to remind you to make no further changes to your computer unless I direct you to do so. Your computer fix will be based on the current condition of your computer! Any changes might delay my ability to help you.

==========

We need to see some information about what is happening in your machine.  Please perform the following scans:

Download Security Check by screen317 from http://screen317.spywareinfoforum.org/SecurityCheck.exe
or http://screen317.changelog.fr/SecurityCheck.exe
.

 

  • Save it to your Desktop.
  • Double click SecurityCheck.exe and follow the onscreen instructions inside of the black box.
  • A Notepad document should open automatically called checkup.txt; please post the contents of that document.

==========

  • Double click on the DDS icon, allow it to run.
  • A small box will open, with an explanation about the tool.  No input is needed, the scan is running.
  • Notepad will open with the results.
  • Follow the instructions that pop up for posting the results.
  • Close the program window, and delete the program from your desktop.

Please note:  You may have to disable any script protection running if the scan fails to run.  After downloading the tool, disconnect from the internet and disable all antivirus protection.  Run the scan, enable your A/V and reconnect to the internet.  

Information on A/V control http://www.bleepingcomputer.com/forums/topic114351.html

==========

Please download aswMBR
( 511KB ) from here: http://public.avast.com/~gmerek/aswMBR.exe
to your desktop.

  • Double click the aswMBR.exe icon to run it
  • Click the Scan button to start the scan
  • On completion of the scan, click the save log button, save it to your desktop and post it in your next reply.

Things I need to see in your next reply:

  • checkup.txt
  • DDS.txt
  • Attach.txt
  • aswMBR log

Best Regards,
oneof4.


#6 Barnack

Barnack
  • Topic Starter

  • Members
  • 91 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Italy
  • Local time:07:02 PM

Posted 23 August 2013 - 07:16 AM

well... i'm sorry, but...

lately i'm REALLY unluky and my motherboard is broken. However i have my hard disk with all the files encrypted and not. My only problem now is to restore the most important files. I'm copying them in the computer i'm writing with just now, they are in different .ZIPs.

 

If you need in can upload the files, but i havent anything else to help, sorry...

There aren't available copyes of the virus in my computer, everything was deleted before i wrote in this forum...

 

thanks for the interest, however... i know that there are various unprofessional teams that are trying to create a program that restore encrypted files by dirty decrypter, but till now, anyone was able to do that... i hope that people of this forum or from other teams will be able to create a decrypter program... If you need, i can upload the files, but i've anything else.


Edited by Barnack, 23 August 2013 - 07:21 AM.


#7 oneof4

oneof4

  • Malware Response Team
  • 3,779 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:The Collective
  • Local time:01:02 PM

Posted 24 August 2013 - 04:18 PM

Hello Barnack,

 

Unfortunately, I don't have good news for you.  At this time there is no solution to decrypt files that have been encrypted by this infection.  I'm also sorry to hear that your motherboard has problems.  We don't usually give up on problems here at Bleeping Computer, but in this case, there is nothing that I can do to help you.  The only advise I can offer is to hold on to the encrypted files, and maybe somewhere down the road someone will develop a decrypting tool that will work.

 

Again, I am sincerely sorry that I can't help you.


Best Regards,
oneof4.


#8 Barnack

Barnack
  • Topic Starter

  • Members
  • 91 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Italy
  • Local time:07:02 PM

Posted 29 August 2013 - 06:39 AM

ok... and if casually happens that one of my friends is infected by the virus, and i take a zipped copy before it is completely deleted, with this virus's copy you'll be able to work on a decrypter?



#9 oneof4

oneof4

  • Malware Response Team
  • 3,779 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:The Collective
  • Local time:01:02 PM

Posted 29 August 2013 - 09:31 AM

That's beyond my realm of expertise, but there are experts in the decryption field that are hard at work on various examples of this particular infection.  They have several versions of files that have been encrypted, so I don't think any others are necessary, but do hold on to your files and anyone elses that you know, in case there is a break-through on a decryption solution.


Best Regards,
oneof4.


#10 Barnack

Barnack
  • Topic Starter

  • Members
  • 91 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Italy
  • Local time:07:02 PM

Posted 30 August 2013 - 12:34 PM

ok, thanks for all the answers



#11 oneof4

oneof4

  • Malware Response Team
  • 3,779 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:The Collective
  • Local time:01:02 PM

Posted 30 August 2013 - 12:41 PM

It appears that this issue is resolved, therefore I am closing the topic. If that is not the case and you need or wish to continue with this topic, please send me or any Moderator a Personal Message (PM) that you would like this topic re-opened.

Best Regards,
oneof4.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users