Linux Variant of REvil Ransomware Targets VMware’s ESXi, NAS Devices

UPDATE Cybercriminals behind a string of high-profile ransomware attacks, including one extorting $11 million from JBS Foods last month, have ported their malware code to the Linux operating system. The unusual move is an attempt to target VMware’s ESXi virtual machine management software and...

SolarWinds Hackers Breach Microsoft Customer Support to Target its Customers

In yet another sign that the Russian hackers who breached SolarWinds network monitoring software to compromise a slew of entities never really went away, Microsoft said the threat actor behind the malicious cyber activities used password spraying and brute-force attacks in an attempt to guess...

SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14337-1)

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14337-1 advisory. - Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after- free. We are aware of targeted...

CVE-2021-29040

The JSON web services in Liferay Portal 7.3.4 and earlier, and Liferay DXP 7.0 before fix pack 97, 7.1 before fix pack 20 and 7.2 before fix pack 10 may provide overly verbose error messages, which allows remote attackers to use the contents of error messages to help launch another, more focused...

CVE-2021-29040

The JSON web services in Liferay Portal 7.3.4 and earlier, and Liferay DXP 7.0 before fix pack 97, 7.1 before fix pack 20 and 7.2 before fix pack 10 may provide overly verbose error messages, which allows remote attackers to use the contents of error messages to help launch another, more focused...

Ransomware by the numbers: Reassessing the threat’s global impact

Kaspersky has been following the ransomware landscape for years. In the past, weve published yearly reports on the subject: PC ransomware in 2014-2016, Ransomware in 2016-2017, and Ransomware and malicious crypto miners in 2016-2018. In fact, in 2019, we chose ransomware as the story of the year,...

The Storybook Approach to MITRE ATT&CK

Read this year’s MITRE Engenuity ATT Evaluations story, which simulates techniques associated with notorious threat groups Carbanak and FIN7 to test solutions' ability to detect and stop APT & Targeted Attacks...

Hacking Operational Technology for Defense: Lessons Learned From OT Red Teaming Smart Meter Control Infrastructure

High-profile security incidents in the past decade have brought increased scrutiny to cyber security for operational technology OT. However, there is a continued perception across critical infrastructure organizations that OT networks are isolated from public networks—such as the Internet. In...

WARNING: A New Android Zero-Day Vulnerability Is Under Active Attack

Google has disclosed that a now-patched vulnerability affecting Android devices that use Qualcomm chipsets is being weaponized by adversaries to launch targeted attacks. Tracked as CVE-2020-11261 CVSS score 8.4, the flaw concerns an "improper input validation" issue in Qualcomm's Graphics compone...

Microsoft Exchange attacks cause panic as criminals go shell collecting

Only last week we posted a blog about multiple zero-day exploits being used to attack on-premises versions of Microsoft Exchange Server in limited and targeted attacks. Seeing how this disclosure came with a patch being available, under normal circumstances you would see some companies update...

CISA Orders Fed Agencies to Patch Exchange Servers

Hot on the heels of Microsoft’s announcement about active cyber-espionage campaigns that are exploiting four serious security vulnerabilities in Microsoft Exchange Server, the U.S. government is mandating patching for the issues. The news comes as security firms report escalating numbers of relat...

Microsoft Issues Patches for In-the-Wild 0-day and 55 Others Windows Bugs

Microsoft on Tuesday issued fixes for 56 flaws, including a critical vulnerability that's known to be actively exploited in the wild. In all, 11 are listed as Critical, 43 are listed as Important, and two are listed as Moderate in severity — six of which are previously disclosed vulnerabilities...

SolarWinds Malware Arsenal Widens with Raindrop

An additional piece of malware, dubbed Raindrop, has been unmasked in the sprawling SolarWinds supply-chain attacks. It was used in targeted attacks after the effort’s initial mass Sunburst compromise, researchers said. The SolarWinds espionage attack, which has affected several U.S. government...

NewStart CGSL CORE 5.05 / MAIN 5.05 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0093)

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has thunderbird packages installed that are affected by multiple vulnerabilities: - When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially...

NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0074)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has thunderbird packages installed that are affected by multiple vulnerabilities: - Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after- free. We are aware of targeted attack...

Pandemic, A Driving Force in 2021 Financial Crime

Financial cybercrime in 2021 is set to evolve, researchers say, with extortion practices becoming more widespread, ransomware gangs consolidating and advanced exploits being used more effectively to target victims. That’s according to key predictions from Kaspersky. Researchers said the drastic...

IT threat evolution Q3 2020

Targeted attacks MATA: Lazaruss multi-platform targeted malware framework The more sophisticated threat actors are continually developing their TTPs Tactics, Techniques and Procedures and the toolsets they use to compromise the systems of their targets. However, malicious toolsets used to target...

MontysThree: Industrial espionage with steganography and a Russian accent on both sides

In summer 2020 we uncovered a previously unknown multi-module C++ toolset used in highly targeted industrial espionage attacks dating back to 2018. Initially the reason for our interest in this malware was its rarity, the obviously targeted nature of the campaign and the fact that there are no...

An overview of targeted attacks and APTs on Linux

Perhaps unsurprisingly, a lot has been written about targeted attacks on Windows systems. Windows is, due to its popularity, the platform for which we discover most APT attack tools. At the same time, theres a widely held opinion that Linux is a secure-by-default operating system that isnt...

IT threat evolution Q2 2020

IT threat evolution Q2 2020. PC statistics IT threat evolution Q2 2020. Mobile statistics Targeted attacks PhantomLance: hiding in plain sight In April, we reported the results of our investigation into a mobile spyware campaign that we call PhantomLance. The campaign involved a backdoor Trojan...