How to remove Cosanostra and decrypt files
Name of the threat:
Command or file name:
Win32/Win64 (Windows XP, Vista/7, 8/8.1, Windows 10)
Cosanostra intrusion method
Cosanostra copies its file(s) to your hard disk. Its typical file name is (random file).exe. Then it creates new startup key with name Cosanostra and value (random file).exe. You can also find it in your processes list with name (random file).exe or Cosanostra. Also, it can create folder with name Cosanostra under C:\Program Files\ or C:\ProgramData.
If you have further questions about Cosanostra, please, contact our technical support. It is free. Or you can use programs to remove Cosanostra automatically below.
Download Wipersoft Antispyware
Download this advanced removal tool and solve problems with Cosanostra and (random file).exe (download of fix will start immediately):Download WiperSoft Antispyware to remove Cosanostra
* WiperSoft Antispyware was developed to remove threats like Cosanostra in automatic mode. Remover has active module to protect PC from hijackers, trojans, ransomware and other viruses. Trial version of Wipersoft provides detection of computer viruses for FREE. To remove malware, you have to purchase the full version of Wipersoft.
Features of WiperSoft Antispyware
Removes all files created by viruses.
Removes all registry entries created by viruses.
Removal is guaranteed - if Wipersoft fails ask for FREE support.
24/7 Spyware Helpdesk Support included into the package.
Download Spyhunter Remediation Tool by Enigma Software
Download antimalware designed specifically to remove threats like Cosanostra and (random file).exe (download of fix will start immediately):Download AntiMalware to remove Cosanostra
Features of Spyhunter Remediation Tool
Removes all files created by Cosanostra.
Removes all registry entries created by Cosanostra.
Removal is guaranteed - if Spyhunter Remediation Tool fails ask for FREE support.
24/7 Helpdesk Support and 5 hours of Remote Support via GoToAssist included into the package.
Let our support team solve your problem with Cosanostra and remove Cosanostra right now!
Submit support ticket below and describe your problem with Cosanostra. Support team will offer you solution in several minutes and give a step-by-step instruction on how to remove Cosanostra. Trouble-free tech support with over 10 years experience removing malware.
Threat's description and solution are developed by Security Stronghold security team.
Here you can also learn:
How to remove Cosanostra manually?
This problem can be solved manually by deleting all registry keys and files connected with Cosanostra, removing it from starup list and unregistering all corresponding DLLs. Additionally missing DLL's should be restored from distribution in case they are corrupted by Cosanostra. However, this threat may not allow you to do htis in some cases, thats why, we recommednd you to use one of the above options.
To get rid of Cosanostra, you should:
1. Kill the following processes and delete the appropriate files:
Warning: you should delete only those files which checksums are listed as malicious. There may be valid files with the same names in your system. We recommend you to use WiperSoft Antispyware Malware Remediation Tool for safe problem solution.
**Trial version of Wipersoft provides detection of computer viruses for FREE. To remove malware, you have to purchase the full version of Wipersoft.
2. Delete the following malicious folders:
3. Delete the following malicious registry entries and\or values:
Warning: if value is listed for some registry entries, you should only clear these values and leave keys with such values untouched. We recommend you to use WiperSoft Antispyware Malware Remediation Tool for safe problem solution.
How to decrypt files after Cosanostra infection?
You may attempt to decrypt files infected by different versions of Cosanostra manually. Modern ransomware threats use complex encryption algorithms and try to prevent users from decrypting their files by disabling System Restore option, removing Shadow copies and previous versions of user files. However, in most cases, there is still a chance to restore your files using one of the described metods. There is also special advanced data recovery software, that can revive lost data in several clicks. This is not a guarantee for data restoration, but it is worth giving a try.
Using advanced data recovery software
Restore encrypted files using System Restore
System Restore constantly creates copies of files and folders before major changes in the system (windows update, software installation). You can also create restore point manually from time to time. Cosanostra may remove system restore files, but you can check it using following instruction.
Roll the files back to the previous version
Previous versions are copies of files and folders made by Windows Backup (if Windows Backup option is turned on) or copies of files and folders created by System Restore. You can use this feature to restore files and folders that you accidentally modified or deleted, or that were encypted by Cosanostra. Available only in Windows 7 and later versions.
Restore files using shadow copies
Protect your computer from ransomware
Most of modern antivirus solutions have a module to protect from ransomware threats. However, there are also special solutions, that can detect cryptoviral activity and stop it, preventing modification of your files. One of the best is ZoneAlarm Anti-Ransomware utility, that will not use much resources for effective protection against latest ransomware threats.
Information provided by: Aleksei Abalmasov