Posts Tagged ‘Security’

Kill-Switch for Petya ransomware on Windows

June 28th, 2017 No comments

PT Security, a UK-based cyber security company and Amit Serper from Cybereason, have discovered a Kill-Switch for Petya ransomware. According to a tweet, company has advised users to create a file i.e. “C:\Windows\perfc” (without extension) to prevent ransomware infection.You need Administrator privileges to write into that directory

How to do it?

  1. Click on Start and type “cmd” without quotes
  2. Right click on it and choose “Run as administratorcmd with admin privilages
  3. Type “cd..” to navigate to previous directory
  4. Type “copy con perfc” and press Enter copy con
  5. Type any random text. When you are finished press “Enter” to go to a new line and press “Ctrl” + “Z” to create the new file create new file
  6. Type “dir pe*” to confirm it.
  7. Change attribute of the newly created file by executing the following command “attrib +R perfcchange attributes to read only
  8. Repeat these steps 4 to 7 replacing “perfc” with “perfc.dll” and “perfc.dat” at the same directory

Petya Ransomware works by encrypting the Master File Table (MFT). If your system is rebooting after infection turn it off immediately to prevent files being encrypted.

Stay tuned for further updates.


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Malwarebytes’ Anti-Malware

April 2nd, 2009 No comments

In my last post about Securing your Online transactions we have seen how to avoid Man-in-the-middle attack. Consider the following situation

A spy may be lurking on your system without your knowledge, secretly stealing your valuable data, such as credit information, typed in web addresses, online bank accounts etc. How to detect and remove them?

Malwarebytes' Anti-Malware

Malwarebytes’ Anti-Malware is an easy to use anti-malware application that can thoroughly remove even the most advanced malware.
It has several extra utilities for manual malware removal. The program is available in many languages and works just fine with other anti-viral and anti-spyware software.


It’s database can be updated on a regular basis to detect the latest outbreaks.
Overall a great little tool and quite capable for it’s size.




  • Effective heuristic detection.
  • Light speed quick scanning.
  • Ability to perform full scans for all drives.
  • Quarantine to hold threats and restore them when needed.
  • A small list of extra utilities to help remove malware manually
  • Works together with other anti-malware utilities.
  • Command line support for quick scanning.
  • Context menu integration to scan files on demand.

OS: Windows 8.1®, Windows 8®, Windows 7®, Windows Vista® (32-bit, 64-bit), Windows XP® (32-bit)

Download Now

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