The sale and purchase of unauthorized access to compromised enterprise networks has become a linchpin for cybercriminal operations, particularly in facilitating ransomware attacks.
Underground forums are sharing guidelines on breaching networks and selling the access they obtain, leaving the exploitation to other malicious actors. On underground criminal forums, these transactions allow actors with complementary skills to collaborate, amplifying the impact and reach of cyberattacks. The market for such access has grown notably, especially as ransomware operators increasingly employ double-extortion tactics.
Read more…
Source: Rapid7
Related:
- New ESXiArgs ransomware version prevents VMware ESXi recovery
February 8, 2023
New ESXiArgs ransomware attacks are now encrypting more extensive amounts of data, making it much harder, if not impossible, to recover encrypted VMware ESXi virtual machines. Last Friday, a massive and widespread automated ransomware attack encrypted over 3,000 Internet-exposed VMware ESXi servers using a new ESXiArgs ransomware. Read more… Source: Bleeping Computer
- CISA and FBI Release ESXiArgs Ransomware Recovery Guidance
February 8, 2023
Today, CISA and the Federal Bureau of Investigation (FBI) released a joint Cybersecurity Advisory, ESXiArgs Ransomware Virtual Machine Recovery Guidance. This advisory describes the ongoing ransomware campaign known as “ESXiArgs.” Malicious cyber actors may be exploiting known vulnerabilities in unpatched and out-of-service or out-of-date versions of VMware ESXi software to gain access to ESXi servers ...
- Blow to Morgan Advanced Materials as cyber-attack to cost millions to deal with
February 7, 2023
Shares in Morgan Advanced Materials tanked 7.5% to 292p this morning after the industrial manufacturer became the latest listed firm to fall victim to a cyber attack which it said would cost millions of pounds to tackle. The 166-year-old firm warned the attack meant some of its IT systems were irrecoverable, and it had been forced ...
- Medusa botnet returns as a Mirai-based variant with ransomware sting
February 7, 2023
A new version of the Medusa DDoS (distributed denial of service) botnet, based on Mirai code, has appeared in the wild, featuring a ransomware module and a Telnet brute-forcer. Medusa is an old malware strain (not to be confused with the same-name Android trojan) being advertised in darknet markets since 2015, which later added HTTP-based DDoS ...
- Clop ransomware flaw allowed Linux victims to recover files for months
February 7, 2023
The Clop ransomware gang is now also using a malware variant that explicitly targets Linux servers, but a flaw in the encryption scheme has allowed victims to quietly recover their files for free for months. This new Linux version of Clop was spotted in December 2022 by Antonis Terefos, a researcher at SentinelLabs, after the threat ...
- Here’s a list of proxy IPs to help block KillNet’s DDoS bots
February 6, 2023
A free tool aims is helping organizations defend against KillNet distributed-denial-of-service (DDoS) bots and comes as the US government issued a warning that the Russian cybercrime gang is stepping up its network flooding attacks against hospitals and health clinics. At current count, the KillNet open proxy IP blocklist lists tens of thousands of proxy IP addresses ...