Blog Marcina Bojko

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Posts Tagged ‘virus

Petya(notPetya) ransomware attack and how to (quickly) vaccinate lot’s of machines

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There was a lot of nice summary articles about latest „ransomware” attack caused by Petya. Soon, researchers started to claim almost permanent vaccine for this type of worm.

https://www.bleepingcomputer.com/news/security/vaccine-not-killswitch-found-for-petya-notpetya-ransomware-outbreak/

Even patched OS won’t save you from infection as one infected machine quickly spreads the infection using other protocols like WinRM.

So, how should one on its vast server farm vaccinate hundrets of machines?

For example, like this 🙂

win_manage:
  dsc_file:    
    petya_vaccine1:
      dsc_destinationpath: C:\Windows\perfc
      dsc_type: file
      dsc_attributes: readonly
      dsc_contents: ""
    petya_vaccine2:
      dsc_destinationpath: C:\Windows\perfc.dat
      dsc_type: file
      dsc_attributes: readonly
      dsc_contents: ""
    petya_vaccine3:
      dsc_destinationpath: C:\Windows\perfc.dll
      dsc_type: file
      dsc_attributes: readonly
      dsc_contents: ""

 

Written by marcinbojko

Lipiec 1, 2017 at 11:14

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