Magic Hound Exploiting Old Microsoft Exchange ProxyShell Vulnerabilities

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here APT35 aka Magic Hound, an Iranian-backed threat group, has begun using Microsoft Exchange ProxyShell vulnerabilities as an initial attack vector and to execute code through multiple web shells. The group has primarily targeted...

Moses Staff Hackers Targeting Israeli Organizations for Cyber Espionage

The politically motivated Moses Staff hacker group has been observed using a custom multi-component toolset with the goal of carrying out espionage against its targets as part of a new campaign that exclusively singles out Israeli organizations. First publicly documented in late 2021, Moses Staff...

Hackers Backdoored Systems at China's National Games Just Before Competition

Systems hosting content pertaining to the National Games of China were successfully breached last year by an unnamed Chinese-language-speaking hacking group. Cybersecurity firm Avast, which dissected the intrusion, said that the attackers gained access to a web server 12 days prior to the start o...

Earth Lusca Hackers Aimed at High-Value Targets in Government and Private Sectors

An elusive threat actor called Earth Lusca has been observed striking organizations across the world as part of what appears to be simultaneously an espionage campaign and an attempt to reap monetary profits. "The list of its victims includes high-value targets such as government and educational...

CISA Warns of Actively Exploited Critical Zoho ManageEngine ServiceDesk Vulnerability

The U.S. Federal Bureau of Investigation FBI and the Cybersecurity and Infrastructure Security Agency CISA are warning of active exploitation of a newly patched flaw in Zoho's ManageEngine ServiceDesk Plus product to deploy web shells and carry out an array of malicious activities. Tracked as...

New Microsoft Exchange 'ProxyToken' Flaw Lets Attackers Reconfigure Mailboxes

Details have emerged about a now-patched security vulnerability impacting Microsoft Exchange Server that could be weaponized by an unauthenticated attacker to modify server configurations, thus leading to the disclosure of Personally Identifiable Information PII. The issue, tracked as...

Top 15 Vulnerabilities Attackers Exploited Millions of Times to Hack Linux Systems

Close to 14 million Linux-based systems are directly exposed to the Internet, making them a lucrative target for an array of real-world attacks that could result in the deployment of malicious web shells, coin miners, ransomware, and other trojans. That's according to an in-depth look at the Linu...

WARNING: Microsoft Exchange Under Attack With ProxyShell Flaws

The U.S. Cybersecurity and Infrastructure Security Agency is warning of active exploitation attempts that leverage the latest line of "ProxyShell" Microsoft Exchange vulnerabilities that were patched earlier this May, including deploying LockFile ransomware on compromised systems. Tracked as...

When coin miners evolve, Part 2: Hunting down LemonDuck and LemonCat attacks

Note: In this two-part blog series, we expose a modern malware infrastructure and provide guidance for protecting against the wide range of threats it enables. Part 1 covered the evolution of the threat, how it spreads, and how it impacts organizations. Part 2 provides a deep dive on the attacker...

When coin miners evolve, Part 2: Hunting down LemonDuck and LemonCat attacks

Note: In this two-part blog series, we expose a modern malware infrastructure and provide guidance for protecting against the wide range of threats it enables. Part 1 covered the evolution of the threat, how it spreads, and how it impacts organizations. Part 2 provides a deep dive on the attacker...

Mongolian Certificate Authority Hacked to Distribute Backdoored CA Software

In yet another instance of software supply chain attack, unidentified hackers breached the website of MonPass, one of Mongolia's major certificate authorities, to backdoor its installer software with Cobalt Strike binaries. The trojanized client was available for download between February 8, 2021...

Chinese Cyber Espionage Hackers Continue to Target Pulse Secure VPN Devices

Cybersecurity researchers from FireEye unmasked additional tactics, techniques, and procedures TTPs adopted by Chinese threat actors who were recently found abusing Pulse Secure VPN devices to drop malicious web shells and exfiltrate sensitive information from enterprise networks. FireEye's...

‘Agrius’ APT Launches Wiper Attacks Against Israelis

A new attack group called Agrius is launching damaging wiper attacks against Israeli targets, which researchers said are hiding behind ransomware to make their state-sponsored activities appear financially motivated. Sentinel Labs analysts said they have been tracking Agrius’ operations in Israel...

Magecart Goes Server-Side in Latest Tactics Changeup

Magecart Group 12, known for skimming payment information from online shoppers, was fingered for last September’s gonzo attack on more than 2,000 e-Commerce sites, and now researchers have issued a report explaining how they did it, detailing a new technical approach. The skimmers are still “very...

SUPERNOVA malware discovered on SolarWinds Orion server

The Cybersecurity and Infrastructure Security Agency CISA has reported finding the SUPERNOVA web shell collecting credentials on a SolarWinds Orion server. These observations were made during an incident response to an Advanced Persistent Threat APT actor’s year-long compromise of an enterprise...

FBI Clears ProxyLogon Web Shells from Hundreds of Orgs

The Feds have cleared malicious web shells from hundreds of vulnerable computers in the United States that had been compromised via the now-infamous ProxyLogon Microsoft Exchange vulnerabilities. ProxyLogon comprises a group of security bugs affecting on-premises versions of Microsoft Exchange...

FBI shuts down malware on hundreds of Exchange servers, opens Pandora’s box

A rather remarkable story has emerged, setting the scene for lively debates about permissible system access. A press release from the US Department of Justice Judge has revealed that the FBI were granted permission to perform some tech support backdoor removal. Bizarrely, they did this without...

FBI accessing computers across US to remove malicious web shells

By Deeba Ahmed FBI is Accessing Computers Across the Us to Prevent Hafnium from Exploiting MS Exchange Server Vulnerabilities - All without telling owners. This is a post from HackRead.com Read the original post: FBI accessing computers across US to remove malicious web shells...

The FBI Is Now Securing Networks Without Their Owners’ Permission

In January, we learned about a Chinese espionage campaign that exploited four zero-days in Microsoft Exchange. One of the characteristics of the campaign, in the later days when the Chinese probably realized that the vulnerabilities would soon be fixed, was to install a web shell in compromised...

Ransomware disrupts food supply chain, Exchange exploitation suspected

When malware found its way into the network of Bakker Logistiek, a company specializing in the transport and warehousing of food and other products, on the night of 4 to 5 April, its IT systems ground to a halt. And, along with them, the reception of orders from clients, and the delivery of goods...