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Cybersecurity

Kiteworks urges nine-hour shutdown over possible attack

Kiteworks told customers to take systems offline for nine hours over the weekend after receiving intelligence from federal authorities, while saying it had found no evidence of compromise.

The Hacker News

Kiteworks told customers to shut down their systems for nine hours over the weekend after it received threat intelligence from federal intelligence authorities that suggested a threat actor might target some of its systems. Frank Balonis, the company’s chief information security officer, said customers were notified directly.

The company said it had not found evidence that customer systems were compromised. It said the advisory was intended as a precaution while it continued to work with the authorities, and it did not identify the agency or name any suspected attacker.

Kiteworks said all known vulnerabilities had been fixed in its latest release, version 9.5.1, and advised customers to install the patches. It also said its subsidiaries Zivver, DRACOON, totemo, ownCloud, WAMNET, Maytech, Bonfy.ai and 123FormBuilder were not affected.

The article noted that in late 2020 and early 2021 Clop, also known as UNC2546, exploited multiple zero-day flaws in Kiteworks’s file transfer programme in a data theft and extortion campaign against high-profile entities.

Named in this story

People

Frank Balonis
the Kiteworks CISO who delivered the warning

Companies

Kiteworks
urged customers to shut down systems and said no compromise had been found
Accellion
former name of Kiteworks
Zivver
one of the Kiteworks subsidiaries said to be unaffected
DRACOON
one of the Kiteworks subsidiaries said to be unaffected
totemo
one of the Kiteworks subsidiaries said to be unaffected
ownCloud
one of the Kiteworks subsidiaries said to be unaffected
WAMNET
one of the Kiteworks subsidiaries said to be unaffected
Maytech
one of the Kiteworks subsidiaries said to be unaffected
Bonfy.ai
one of the Kiteworks subsidiaries said to be unaffected
123FormBuilder
one of the Kiteworks subsidiaries said to be unaffected

Organisations

Clop
the threat actor named in the past campaign against the file transfer programme
UNC2546
the alias given for Clop in the earlier campaign

Governments and agencies

federal intelligence authorities
provided the threat intelligence cited by Kiteworks

How the source tells it

The article read like a precautionary security notice, with urgency from the shutdown warning and reassurance from repeated denials of compromise.

  • urgency the nine-hour shutdown request and the framing of a likely near-term attack
  • reassurance the repeated statement that no compromise had been found and that the advisory was preventive