A hacker gang affiliated with Belarusian intelligence carried out an assault on Ukraine's government websites this week, using malware similar to that employed by a group linked to Russian intelligence, according to a senior Ukrainian security officer.
Ukraine blamed Friday's attack - which vandalised government websites with threatening statements - on a group known as UNC1151 and said it was a cover for more disruptive acts behind the scenes, according to Serhiy Demedyuk, deputy secretary of the national security and defence council.
His remarks represent Kyiv's first in-depth examination of the suspected perpetrators of the assault on dozens of websites.
Officials indicated on Friday that Russia was most likely engaged, but provided no other specifics. Belarus is a close Russian ally.