"Network owners who were hit by Petya.A Ransomware may become potential targets of another cyberattack, even after recovering their computers," the report says.

It is reported that the CERT-UA team has developed updated recommendations to reduce the risks of being repeatedly affected and minimize (avoid) the consequences of hacking.

The Special Communications Agency advises that the published recommendations be applied as soon as possible.

Read alsoAnalysis of TeleBots' cunning backdoor: Massive cyber attack aimed at UkraineAs UNIAN reported earlier, on June 27, 2017, the cyberattack was carried out on state institutions, financial, energy and transport facilities, as well as private enterprises, through malicious software Petya.A, which blocked operations of computer networks. The malware encrypts data stored computers and requires ransom.

The Ukrainian law enforcers tend to believe that ransom demands were just a cover-up for a massive sophisticated cyberattack, aimed at disrupting operations of a wide range of facilities across Ukraine, hinting that the attack was allegedly orchestrated and executed from Russia.