FBI-DHS-CISA Joint Advisory on Russian Foreign Intelligence Service Cyber Operations

The Federal Bureau of Investigation FBI, Department of Homeland Security, and CISA have released a Joint Cybersecurity Advisory CSA addressing Russian Foreign Intelligence Service SVR cyber actors—also known as Advanced Persistent Threat 29 APT 29, the Dukes, CozyBear, and Yttrium—continued...

Prometei Botnet Could Fire Up APT-Style Attacks

A heretofore little-seen botnet dubbed Prometei is taking a page from advanced persistent threat APT cyberattackers: The malware is exploiting two of the Microsoft Exchange vulnerabilities collectively known as ProxyLogon, in order to drop a Monero cryptominer on its targets. It’s also highly...

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...

Hackers Exploit VPN to Deploy SUPERNOVA malware on SolarWinds Orion

The U.S. Cybersecurity and Infrastructure Security Agency CISA has disclosed details of a new advanced persistent threat APT that's leveraging the Supernova backdoor to compromise SolarWinds Orion installations after gaining access to the network through a connection to a Pulse Secure VPN device...

CVE-2021-22893

Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and Pulse Secure Collaboration features of Pulse Connect Secure that can allow an unauthenticated user to perform remote arbitrary code execution on the...

Pulse Secure Critical Zero-Day Security Bug Under Active Exploit

A critical zero-day security vulnerability in Pulse Secure VPN devices has been exploited by nation-state actors to launch cyberattacks against U.S. defense, finance and government targets, as well as victims in Europe, researchers said. Download “The Evolution of Ransomware” to gain valuable...

Lazarus APT Hackers are now using BMP images to hide RAT malware

A spear-phishing attack operated by a North Korean threat actor targeting its southern counterpart has been found to conceal its malicious code within a bitmap .BMP image file to drop a remote access trojan RAT capable of stealing sensitive information. Attributing the attack to the Lazarus Group...

Check Your Pulse: Suspected APT Actors Leverage Authentication Bypass Techniques and Pulse Secure Zero-Day

Executive Summary Mandiant recently responded to multiple security incidents involving compromises of Pulse Secure VPN appliances. This blog post examines multiple, related techniques for bypassing single and multifactor authentication on Pulse Secure VPN devices, persisting across upgrades, and...

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...

Vulnerability fixed in x.org

A vulnerability has been fixed in X.org. A malicious person could exploit the vulnerability to appropriate elevated privileges within the X server and thus potentially execute arbitrary code with application privileges. Under usual circumstances, an X server runs with limited permissions. -= Debi...

Lazarus APT conceals malicious code within BMP image to drop its RAT

This blog was authored by Hossein Jazi Lazarus APT is one of the most sophisticated North Korean Threat Actors that has been active since at least 2009. This actor is known to target the U.S., South Korea, Japan and several other countries. In one of their most recent campaigns Lazarus used a...

Attackers Target ProxyLogon Exploit to Install Cryptojacker

Cryptojacking can be added to the list of threats that face any unpatched Exchange servers that remain vulnerable to the now-infamous ProxyLogon exploit, new research has found. Researchers discovered the threat actors using Exchange servers compromised using the highly publicized exploit...

Detecting Post-Compromise Threat Activity in Microsoft Cloud Environments

Summary This Advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge ATT &CK® framework. See the ATT&CK for Enterprise for all referenced threat actor tactics and techniques. Updated April 15, 2021: The U.S. Government attributes this activity to the Russian Foreign...

Detecting Post-Compromise Threat Activity Using the CHIRP IOC Detection Tool

Summary Updated April 15, 2021: The U.S. Government attributes this activity to the Russian Foreign Intelligence Service SVR. Additional information may be found in astatement from the White House. For more information on SolarWinds-related activity, go to...

Advanced Persistent Threat Compromise of Government Agencies, Critical Infrastructure, and Private Sector Organizations

Summary Updated April 15, 2021: The U.S. Government attributes this activity to the Russian Foreign Intelligence Service SVR. Additional information may be found in astatement from the White House. For more information on SolarWinds-related activity, go to...

Vulnerability fixed in Tomcat

Two vulnerabilities have been discovered in the Tomcat servlet and the JSP engine, which could lead to information disclosure or denial of service. -= Debian =- Debian has made updates to tomcat9 available for Debian 10.0 Buster to address the vulnerabilities. You can install the custom packages ...

Threat Actors Targeting Cybersecurity Researchers

Google and Microsoft recently published reports on advanced persistent threat APT actors targeting cybersecurity researchers. The APT actors are using fake social media profiles and legitimate-looking websites to lure security researchers into visiting malicious websites to steal information,...

Zero-day vulnerability in Desktop Window Manager (CVE-2021-28310) used in the wild

While analyzing the CVE-2021-1732 exploit originally discovered by the DBAPPSecurity Threat Intelligence Center and used by the BITTER APT group, we discovered another zero-day exploit we believe is linked to the same actor. We reported this new exploit to Microsoft in February and after...

CVE-2021-28310

Win32k Elevation of Privilege Vulnerability Recent assessments: ccondon-r7 at April 13, 2021 8:41pm UTC reported: Ah, another day, another Win32k privilege escalation used in the wild. Securelist has a good write-up on this bug, which they discovered because it was used in a BITTER APT zero-day...

Iron Tiger APT Updates Toolkit With Evolved SysUpdate Malware

This blog details how Iron Tiger threat actors have updated their toolkit with an updated SysUpdate malware variant that now uses five files in its infection routine instead of the usual three...