The engineering group Krauss Maffei has been struck by a serious cyber attack. After the attack a good two weeks ago, the company headquartered in Munich has produced at some locations only with reduced performance, as many computers were paralyzed due to a Trojan attack, said a company spokesman.

Meanwhile one is on the "way to the normal state", the production is started up. Important files would be made to work. The vast majority of sites were not affected.

Amount of claim unknown

The KraussMaffei Group with more than 5,000 employees claims to be one of the world's leading manufacturers of machinery and equipment for the production and processing of plastics and rubber. In 2016, the group was acquired by the Chinese chemicals group China National Chemical Corporation (ChemChina). The Chinese Securities and Exchange Commission recently granted the company approval for a planned IPO.

The previously unknown attackers, according to "Frankfurter Allgemeine Zeitung" ("FAZ") a ransom demand to the Group. The spokesman said nothing about the amount of the claim. Several security authorities were informed immediately after the attack on the night of 21 November.

According to "FAZ", the Federal Office for Information Security (BSI) referred to two recent cases - without mentioning the names of those affected. One hundred percent of the servers and computers of the network had failed, a BSI spokesman confirmed.

The engineering company Krauss Maffei is not to be confused with the armaments company Krauss-Maffei Wegmann (KMW).