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FUJITSU SUFFERS WORM-LIKE ATTACK FROM SOMETHING THAT WASN'T RANSOMWAREFUJITSU
SUFFERS WORM-LIKE ATTACK FROM SOMETHING THAT WASN'T RANSOMWARE

The CE giant released its investigative findings regarding a March cyberattack
that resulted in data exfiltration affecting its Japanese operations.

Tara Seals, Managing Editor, News, Dark Reading

July 11, 2024

1 Min Read
Source: Patrick Batchelder via Alamy Stock Photo


After months of postmortem investigation, Fujitsu now says the malware that
affected its systems in a cyberattack last March was not ransomware as
previously speculated — and noted that the binary self-propagated, worming its
way through the company's internal networks in Japan.

In its rundown of the investigative findings this week, the consumer electronics
and networking giant confirmed that the malware first established a beachhead on
one of Fujitsu's business PCs, attacking from an external server (it didn't
mention what the initial access method was). The malware was "particularly
difficult to detect," according to Fujitsu, using sophisticated techniques to
cloak itself as it replicated onto 49 other PCs within the network.



Only its Japanese footprint was affected.

"The affected computers were not managed through the cloud services provided by
Fujitsu," the company noted in the advisory. "Additionally, no trace of access
to the services provided by Fujitsu to customers was found. The investigation
concluded that the damage did not spread outside of the company's business
computers, including to customers' network environments."



Nonetheless, the attack resulted in data exfiltration, including files
containing "personal or business-related information about certain customers."

The company said it has since beefed up its security measures, including
implementing security monitoring rules for the unnamed malware to all business
PCs, and enhancing virus detection software functions and updates.





ABOUT THE AUTHOR

Tara Seals, Managing Editor, News, Dark Reading



Tara Seals has 20+ years of experience as a journalist, analyst and editor in
the cybersecurity, communications and technology space. Prior to Dark Reading,
Tara was Editor in Chief at Threatpost, and prior to that, the North American
news lead for Infosecurity Magazine. She also spent 13 years working for Informa
(formerly Virgo Publishing), as executive editor and editor-in-chief at
publications focused on both the service provider and the enterprise arenas. A
Texas native, she holds a B.A. from Columbia University, lives in Western
Massachusetts with her family and is on a never-ending quest for good Mexican
food in the Northeast.


See more from Tara Seals, Managing Editor, News, Dark Reading
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