June 27 hundreds of thousands computers across the whole Ukraine were encrypted with a virus that required to send $ 300 to the bitcoin wallet for decryption.
When the attack began, this wallet was empty.

https://blockchain.info/address/1Mz7153HMuxXTuR2R1t78mGSdzaAtNbBWX

Name of the virus is Petya - same name as president of Ukraine. The Petya virus resembles WannaCry but with a number of differences. Unfortunatly Ukraine was not protected from cyber attacks...

A huge number of small and large companies have suffered from the virus Petya in all cities of Ukraine.

The main office of Ukrenergo managed to shut down the network and avoid infection, but its units are completely infected.
In the Ukrainian logistics company, "Novaya Pochta" suspended activity because of the virus attack.

Hackers got to the site of Cyberpolicy

As of 17.00, on June 27, the site of the Department of Cyberpolicy does not open or operates in offline mode.

Due to the attack on the systems running the Windows operating system, the channels 'First Automobile' and TRK Kiev have stopped broadcasting, and at the airport 'Boryspil' was warning about flight delays. Also, most ATMs failed...

List of structures affected by the virus:

State structures

The Cabinet of Ministers of Ukraine
Ministry of the Interior
Ministry of Culture
Ministry of Finance
National Policy (and regional sites)
Cyberpolicy
KSCA
Lviv City Council
Ministry of Energy
National Bank

Banks

Oschadbank
Sberbank
TASKOMERZBANK
Ukrgasbank
Pivdenny
OTR Bank
Kredobank.

Transport

Borispol airport"
The Kiev underground
Ukrzaliznytsya

Mass media

Radio Era-FM
Football.ua
STB
Inter
First national
TV Channel 24
Radio "Lux"
Radio "Maximum"
"CP in Ukraine"
АТP television channel
"Correspondent.on"

Large companies

"New mail"
"Kyivenergo"
"Naftogaz of Ukraine"
DTEK
"Dneprenergo"
"Kievvodokanal"
"Novus"
"Epicenter"
"Arcelorl Mittal"
"Ukrtelecom"
"Ukrposhta"

Mobile operators

Lifecell
Kyivstar
Vodafone Ukraine

Medicine

Farmak
Clinic Boris
Theophany Hospital
Arterium Corporation

Petrol stations

WOG
Klo
TNK

Decipherers are not yet, those that are posted on the Internet, only fit to the old versions.
At the moment, signals about infection come from different regions of Europe.