SophosLabs analysts investigated WantToCry ransomware attacks that involved the threat actors abusing the Server Message Block (SMB) service for initial access and then exfiltrating files to attacker-controlled infrastructure for remote encryption. The detection surface is significantly reduced because WantToCry operates without local malware execution, and there is no post-compromise activity beyond exfiltrating files and rewriting them to disk.
Read more…
Source: SophosLabs
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Roaming Mantis hits Android and iOS users in malware, phishing attacks
July 19, 2022
After hitting Germany, Taiwan, South Korea, Japan, the US, and the U.K. the Roaming Mantis operation moved to targeting Android and iOS users in France, likely compromising tens of thousands of devices. Roaming Mantis is believed to be a financially-motivated threat actor that started targeting European users in February. In a recently observed campaign, the threat actor ...
- Botnet malware disguises itself as password cracker for industrial controllers
July 18, 2022
Industrial engineers and operators are being lured into running backdoor malware disguised as tools for recovering access to work systems. These programs offer to crack passwords for specific programmable logic controllers, according to security shop Dragos this month. According to their online ads, the cracking tools can help unlock products from more than a dozen electronics manufacturing ...
- Hackers pose as journalists to breach news media org’s networks
July 16, 2022
Researchers following the activities of advanced persistent (APT) threat groups originating from China, North Korea, Iran, and Turkey say that journalists and media organizations have remained a constant target for state-aligned actors. The adversaries are either masquerading or attacking these targets because they have unique access to non-public information that could help expand a cyberespionage operation. Recent ...
- Meet Mantis – the tiny shrimp that launched 3,000 DDoS attacks
July 15, 2022
The botnet behind the largest-ever HTTPS-based distributed-denial-of-service (DDoS) attack has been named after a tiny shrimp. Cloudflare said it thwarted the 26 million request per second (rps) attack last month, and we’re told the biz has been tracking the botnet ever since. Now, the internet infrastructure company has given the botnet a name — Mantis — ...
- Attackers scan 1.6 million WordPress sites for vulnerable plugin
July 15, 2022
Security researchers have detected a massive campaign that scanned close to 1.6 million WordPress sites for the presence of a vulnerable plugin that allows uploading files without authentication. The attackers are targeting the Kaswara Modern WPBakery Page Builder, which has been abandoned by its author before receiving a patch for a critical severity flaw tracked as ...
- The industrial internet of things is still a big mess when it comes to security
July 14, 2022
Critical infrastructure is increasingly targeted by cyber criminals – and while those responsible for running industrial networks know that securing operational technology (OT) and the Industrial Internet of Things (IIoT) is vital, they’re struggling, resulting in networks being left vulnerable to attacks. According to analysis by cybersecurity company Barracuda, 94% of industrial organisations have experienced a ...