This week, the SonicWall Capture Labs threat research team investigated a sample of CoreWarrior malware. This is a persistent trojan that attempts to spread rapidly by creating dozens of copies of itself and reaching out to multiple IP addresses, opening multiple sockets for backdoor access, and hooking Windows UI elements for monitoring. Infection Cycle
The malware is a UPX-packed executable that has been manually tampered with and will not unpack using the standard UPX unpacker.
Read more…
Source: Sonicwall
Related:
- US government warns Linux CVE-2024-1086 flaw is now being exploited for ransomware attacks
November 3, 2025
The US government is warning that a Linux flaw introduced more than a decade ago – and fixed more than a year ago – is being actively used in ransomware attacks. In February 2014, a vulnerability was introduced into the Linux kernel via a commit. The bug was first disclosed in late January 2024, and described ...
- Chicago firm that resolves ransomware attacks had rogue workers carrying out their own hacks
November 2, 2025
Rogue employees of a Chicago company that specializes in negotiating ransoms to mitigate cyber attacks were carrying out their own piracy in a plot to extort millions of dollars from a series of companies, prosecutors say. Kevin Tyler Martin, a ransomware threat negotiator for River North-based DigitalMint at the time of the alleged conspiracy, was among ...
- Update Chrome now: 20 security fixes just landed
October 31, 2025
Google has released an update for its Chrome browser that includes 20 security fixes, several of which are classed as high severity. Most of these flaws were found in Chrome’s V8 engine—the part of Chrome (and other Chromium-based browsers) that runs JavaScript. Chrome is by far the world’s most popular browser, used by an estimated 3.4 ...
- Canadian government claims hacktivists are attacking water and energy facilities
October 31, 2025
The Canadian government has issued a new security alert warning of so-called hacktivists targeting Industrial Control Systems (ICS). The report says the Cyber Centre and the Royal Canadian Mounted Police has received “multiple reports” of incidents involving internet-accessible ICS. Among the reports were an attack on a water facility, in which the miscreants tampered with water ...
- Government hackers breached telecom giant Ribbon for months before getting caught
October 31, 2025
U.S. telecommunications giant Ribbon has confirmed that government-backed hackers had access to its network for almost a year before getting caught, according to a public filing. The telco giant said in a 10-Q disclosure last week with the U.S. Securities and Exchange Commission that a suspected “nation-state actor had gained access to the company’s IT network” ...
- UK: Woman charged after around 100 patient records accessed in data breach
October 31, 2025
A woman has been charged after around 100 patients had their medical records accessed in a data breach at NHS Lothian. The health board has written letters to patients affected by the breach, which they say was caused by one individual at Edinburgh Royal Infirmary. A letter dated last month, seen by STV News, says the ...
