The five-day job: A BlackByte ransomware intrusion case study

As ransomware attacks continue to grow in number and sophistication, threat actors can quickly impact business operations if organizations are not well prepared. In a recent investigation by Microsoft Incident Response previously known as Microsoft Detection and Response Team – DART of an...

Worok Hackers Abuse Dropbox API to Exfiltrate Data via Backdoor Hidden in Images

A recently discovered cyber espionage group dubbed Worok has been found hiding malware in seemingly innocuous image files, corroborating a crucial link in the threat actor's infection chain. Czech cybersecurity firm Avast said the purpose of the PNG files is to conceal a payload that's used to...

Growling Bears Make Thunderous Noise

Growling Bears Make Thunderous Noise By Trellix · June 6, 2022 Per public attribution, Russian cybercriminal groups have always been active. Their tactics, techniques, and procedures TTPs have not significantly evolved over time, although some changes have been observed. Lately, the threat...

New Incident Report Reveals How Hive Ransomware Targets Organizations

A recent Hive ransomware attack carried out by an affiliate involved the exploitation of "ProxyShell" vulnerabilities in the Microsoft Exchange Server that were disclosed last year to encrypt an unnamed customer's network. "The actor managed to achieve its malicious goals and encrypt the...

ProxyShell vulnerabilities exploited in domain-wide ransomware attacks

By Deeba Ahmed The ProxyShell vulnerabilities have prompted threat actors to launch domain-wide ransomware attacks against their targets. This is a post from HackRead.com Read the original post: ProxyShell vulnerabilities exploited in domain-wide ransomware attacks...

Security News: Exchange ProxyShell, Zoom RCE, Citrix Canceled PT Acknowledgments, Cisco No Patch Router RCEs

Hello everyone! This is a new episode with my comments on the latest Information Security news. Exchange ProxyShell I want to start with something about attacks on Exchange. ProxyShell is in the news, the LockFile ransomware compromised more than 2000 servers. On the other hand, there is basicall...

ProxyShell Attacks Pummel Unpatched Exchange Servers

Over the weekend, the Cybersecurity & Infrastructure Security Agency CISA issued an urgent alert that attackers are actively attacking ProxyShell vulnerabilities in unpatched Microsoft Exchange Servers, joining researchers in urging organizations to immediately install the latest Microsoft Securi...

Urgent: Protect Against Active Exploitation of ProxyShell Vulnerabilities

Malicious cyber actors are actively exploiting the following ProxyShell vulnerabilities: CVE-2021-34473, CVE-2021-34523, and CVE-2021-31207. An attacker exploiting these vulnerabilities could execute arbitrary code on a vulnerable machine. CISA strongly urges organizations to identify vulnerable...

Hackers Actively Searching for Unpatched Microsoft Exchange Servers

Threat actors are actively carrying out opportunistic scanning and exploitation of Exchange servers using a new exploit chain leveraging a trio of flaws affecting on-premises installations, making them the latest set of bugs after ProxyLogon vulnerabilities were exploited en masse at the start of...