From December 2023 to the present, QiAnXin Threat Intelligence Center observed that a ransomware written in rust language is very active on the Chinese Internet, and a large number of machines in China have been ransomed, with up to more than 20 victimized units only in the terminals of government and enterprises, which the researchers call Rast ransomware.
After a long time of tracking, QiAnXin Threat Intelligence Center have captured three versions of Rast ransomware, and the versions are still iterating. rast ransomware has a very special logic: after the ransomware is completed, it will upload the machine name and unique identifier of the local machine to the remote mysql database. Through reverse analysis the research team got the mysql database account password and statistics of victims in the database, and found that in just ten months more than 6,800 terminals were controlled.
Read more…
Source: QiAnXin Threat Intelligence Center
Related:
- Spear-phishing campaign compromises executives at 150+ companies
April 30, 2020
A cybercrime group operating since mid-2019 has breached the email accounts of high-ranking executives at more than 150 companies, cyber-security firm Group-IB reported today. The group, codenamed PerSwaysion, appears to have targeted the financial sector primarily, which accounted for more than half of its victims; although, victims have been recorded at companies active across other verticals ...
- Security 101: How Fileless Attacks Work and Persist in Systems
April 30, 2020
As security measures get better at identifying and blocking malware and other threats, modern adversaries are constantly crafting sophisticated techniques to evade detection. One of the most persistent evasion techniques involves fileless attacks, which do not require malicious software to break into a system. Instead of relying on executables, these threats misuse tools that are ...
- WebMonitor RAT Bundled with Zoom Installer
April 29, 2020
The coronavirus pandemic has highlighted the usefulness of communication apps for work-from-home (WFH) setups. However, like they always do, cybercriminals are expected to exploit popular trends and user behavior. We have witnessed threats against several messaging apps including Zoom. In early April, we spotted an attack leveraging Zoom installers to spread a cryptocurrency miner. We recently encountered a similar attack ...
- Academics demand answers from NHS over potential data timebomb ticking inside new UK contact-tracing app
April 29, 2020
A group of nearly 175 UK academics has criticised the NHS’s planned COVID-19 contact-tracing app for a design choice they say could endanger users by creating a centralised store of sensitive health and travel data about them. In the open letter published this afternoon, the 173 scholars called on NHSX, the state-run health service’s app-developing and ...
- Remote spring: the rise of RDP bruteforce attacks
April 29, 2020
With the spread of COVID-19, organizations worldwide have introduced remote working, which is having a direct impact on cybersecurity and the threat landscape. Alongside the higher volume of corporate traffic, the use of third-party services for data exchange, and employees working on home computers (and potentially insecure Wi-Fi networks), another headache for infosec teams is the ...
- Hiding in plain sight: PhantomLance walks into a market
April 28, 2020
In July 2019, Dr. Web reported about a backdoor trojan in Google Play, which appeared to be sophisticated and unlike common malware often uploaded for stealing victims’ money or displaying ads. So, we conducted an inquiry of our own, discovering a long-term campaign, which we dubbed “PhantomLance”, its earliest registered domain dating back to December 2015. We found ...