Shifts in the Underground: The Impact of Water Kurita’s (Lumma Stealer) Doxxing


In September 2025, Trend Micro researchers noted a striking decline in new command and control infrastructure activity associated with Lummastealer (which Trend Micro tracks as Water Kurita), as well as a significant reduction in the number of endpoints targeted by this notorious malware.

This sudden drop appears to align with a targeted underground exposure campaign that has put the spotlight on individuals allegedly linked to the Lummastealer operation. Allegedly driven by competitors, this campaign has unveiled personal and operational details of several supposed core members, leading to significant changes in Lummastealer’s infrastructure and communications.

Read more…
Source: Trend Micro


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • British cyber gang ‘stole large amounts from US sports and music stars after accessing their phones’

    February 10, 2021

    Eight Britons have been arrested for hacking into the phones of US celebrities to steal money and personal information – even posing as them online. Britain’s National Crime Agency (NCA) said sports stars, musicians and their families had been targeted by the scam in which criminals gain access to their victim’s phones or accounts. This allowed them ...

  • BendyBear: Novel Chinese Shellcode Linked With Cyber Espionage Group BlackTech

    February 9, 2021

    Highly malleable, highly sophisticated and over 10,000 bytes of machine code. This is what Unit 42 researchers were met with during code analysis of this “bear” of a file. The code behavior and features strongly correlate with that of the WaterBear malware family, which has been active since as early as 2009. Analysis by Trend ...

  • Android Devices Hunted by LodaRAT Windows Malware

    February 9, 2021

    A newly discovered variant of the LodaRAT malware, which has historically targeted Windows devices, is being distributed in an ongoing campaign that now also hunts down Android devices and spies on victims. Along with this, an updated version of LodaRAT for Windows has also been identified; both versions were seen in a recent campaign targeting Bangladesh, ...

  • Web hosting provider shuts down after cyberattack

    February 9, 2021

    A web hosting company named No Support Linux Hosting announced today it was shutting down after a hacker breached its internal systems and compromised its entire operation. According to a message posted on its official site , the company said it was breached on Monday, February 8. The hacker appears to have “compromised” the company’s entire ...

  • Actively Exploited Windows Kernel EoP Bug Allows Takeover

    February 9, 2021

    Microsoft has addressed nine critical-severity cybersecurity bugs in February’s Patch Tuesday updates, plus an important-rated vulnerability that is being actively exploited in the wild. Six of the security holes – including one of the critical bugs – were already publicly disclosed. Overall, the computing giant has released patches for 56 CVEs covering Microsoft Windows components, the .NET ...

  • Florida: Hacker Changed Chemical Levels at Oldsmar’s Water Treatment Plant

    February 8, 2021

    Pinellas County Sheriff Bob Gualtieri said at a news conference Monday there were two intrusions, hours apart. The first one happened at 8 a.m., when a plant operator noticed someone remotely accessing the system he was monitoring, which controls chemicals and other plant operations. But he didn’t think much of it, according to the sheriff, because ...