Solved

cryptolocker

Posted on 2013-11-22
10
611 Views
Last Modified: 2013-11-29
I have a user that got infected, he ran Malwarebytes and removed
Now he cannot open any of his Word or Excel files, he can open other Word and Excel files other than the ones that were on his computer prior to infection

any suggestions?
0
Comment
Question by:jsarinana
10 Comments
 
LVL 13

Accepted Solution

by:
akb earned 250 total points
ID: 39670423
I had a customer with a similar problem a while ago. Turned out the virus had set all the files to Read-Only.
0
 
LVL 14

Expert Comment

by:Giovanni Heward
ID: 39670463
While the malware is removed the files will remain encrypted.  For an explanation of this read http://www.experts-exchange.com/Software/Office_Productivity/Office_Suites/MS_Office/Q_28275170.html#a39606853

If you don't have a backup, try using shadow explorer, if that fails the only method available to recover your files is the decryption key, which unfortunately is only available from the malware author and requires the ransom to be paid.

To pay the ransom and recovery your files, read http://www.experts-exchange.com/Security/Vulnerabilities/Q_28294767.html#a39651228

Preventative solutions are posted @ http://www.experts-exchange.com/Storage/Misc/Q_28296724.html#a39657671
0
 
LVL 6

Assisted Solution

by:Biniek
Biniek earned 250 total points
ID: 39670470
I do not have good news for You,

CryptLocker has encrypted all user files with private/public key, so the files are encrypted,

You can look at :

http://www.experts-exchange.com/Security/Digital_Forensics/Q_28261996.html
0
 
LVL 24

Expert Comment

by:aadih
ID: 39670497
< Preventative solutions >:

Also: Bitdefender Anti-CryptoLocker.
0
 
LVL 14

Expert Comment

by:Giovanni Heward
ID: 39670519
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 1

Author Comment

by:jsarinana
ID: 39675226
The virus this user was infected with was called
Ransom-FFD!1BD961039177

ANY SUGGESTIONS?
0
 
LVL 14

Expert Comment

by:Giovanni Heward
ID: 39675247
Please upload a sample encrypted file and we'll see if we can confirm.  Thanks.
0
 
LVL 1

Author Comment

by:jsarinana
ID: 39675502
Thanks x66_x72_x65_x65
here is a zip file with three bad files Word and Excel
bad-files.zip
0
 
LVL 14

Expert Comment

by:Giovanni Heward
ID: 39675804
All files reflect the CryptoLocker file header signature (scanner and signature reference posted previously.)

CryptoUnLocker.exe --detect s.xls
[+] Found a potential CryptoLocker file: s.xls

CryptoUnLocker.exe --detect "Zacky Farms PE ETEC.doc"
[+] Found a potential CryptoLocker file: Zacky Farms PE ETEC.doc

CryptoUnLocker.exe --detect "Zacky PE Q.doc"
[+] Found a potential CryptoLocker file: Zacky PE Q.doc
0
 
LVL 1

Author Closing Comment

by:jsarinana
ID: 39686024
thanks
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Security Question AV vs Malwarebytes or benefits using both. 9 91
Kaspersky installation 8 56
PCAnywhere 2 100
Roguekiller has no option of deleting 19 91
A brand new malware strain was recently discovered by security researchers at Palo Alto Networks dubbed “AceDeceiver.” This new strain of iOS malware can successfully infect non-jailbroken devices and jailbroken devices alike.
I've been an avid user and supporter of Malwarebytes Premium Version 2.x for years. It's an excellent product that runs alongside just about any Anti-Virus application without issues. It seems to have an uncanny ability to pick up many things that A…
This tutorial gives a high-level tour of the interface of Marketo (a marketing automation tool to help businesses track and engage prospective customers and drive them to purchase). You will see the main areas including Marketing Activities, Design …
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now