Ransom demands do not appear to have been accepted and in keeping with its standard practice, the criminals have released 5.32Gb of correspondence (screenshot below) entered into by the chief executive, chief financial officer and other workers in the company.
NETZSCH has 2100 employees and annual revenue of about US$1 billion (A$1.4 billion).
One message has been left open on the dark Web site of the ransomware group, a somewhat erotic effort by Moritz Netzsch, a member of executive board who is in charge of Strategy, HR and Innovation.
She summarised the message this way: "It is sent by someone who calls himself Moritz. It is asking for a fetish date, outlines the kind of kinky stuff he is interested in and asks for a response. He says that WhatsApp is also alright for a response. Looks to be some sexual deviant."
It appears like the criminals were aware of the saucy text and wanted to embarrass Netzsch.
Update, 10 August: Contacted for comment, a NETZSCH spokesperson told iTWire: "We can confirm that the NETZSCH Group has been the target of a ransomware attack on 10 July. Our IT department reacted early on and was thus able to minimise damage significantly. All our networks and servers were shut down immediately.
"Together with a team of cyber security and IT forensic experts we have been working on cleaning and restoring the systems under additionally strengthened security conditions.
"Most of our systems are now available again, we are re-connected to email communication and our production and delivery are up and running. All installed IT security measures have already been double checked and additionally secured.
"We work closely with law enforcement agencies and the responsible special department for cyber crime immediately started investigations. The investigations are still ongoing.
"As to data publications allegedly resulting from this incident, we are — together with law enforcement agencies and our lawyers — reviewing any postings in order to verify if such postings may be fake.
"Moreover, we will be enforcing our rights to protect corporate confidentiality and will support the enforcement of the privacy and personal rights of all individuals potentially affected by a data steal and illegal publications."