Petya ransomware cyber security awareness

1. 1
Cyber Security Awareness
Petya ransomware
Fusion IT Department
Petya ransomware is affecting
users globally;This clearly looks like early signs of a new
ransomware attack that is spreading fast across the globe. Currently, we have
seen multiple reports of this ransomware attack from several countries.
Petya delivery mechanism is by scam emails or phishing emails. Once the email
attachment is executed on the computer it shows the prompt of User Access
Control. However, after executing the program it encrypts the Master Boot
Record (MBR) and replaces it with a custom boot loader with a code to encrypt
the full disk starting with MFT (Master File Tree) and leaves a ransom note to
users. Upon successfully encrypting the whole disk of the computer it shows
below ransom prompt.
Fig 1. Petya ransom screen

2. 2
What prevention should user take to
avoid getting infected?
Following measures to reduce the risk of infection by
Petya ransomware:
Keep update your system operating system
as of now-
Take regular back up of your important data and
periodically check the backup restoration process to make
sure files are getting properly restored.

3. 3
Antivirus should be updated as of now -
Avoid clicking on links and opening attachment in emails from
unknown and suspicious sources.
If a threat is executed in my computer, can I still prevent my
data?
If by mistake someone executes the threat on an unprotected computer by clicking
on the link in the email and downloading the attachment, and if you see a BSOD (blue
screen) that restarts your computer, you can still save your data by not restarting the
computer. Just keep it switched off and contact immediately to IT Department at -
_____________________________________________________________
IT Support availability
itsupport@fusionmicrofinance.in/support@fusionmicrofinance.in/
asish.das@fusionmicrofinance.in/kamlesh.soni@fusionmicrofinance.in
Contact@: 011- 466 466 42/50/87/91