What’s new in TrickBot? Deobfuscating elements

Trojan.TrickBot has been present in the threat landscape from quite a while. We wrote about its first version in October 2016. From the beginning, it was a well organized modular malware, written by developers with mature skills. It is often called a banker, however its modular structure allows t...

CVE-2018-17612

Sennheiser HeadSetup 7.3.4903 places Certification Authority CA certificates into the Trusted Root CA store of the local system, and publishes the private key in the SennComCCKey.pem file within the public software distribution, which allows remote attackers to spoof arbitrary web sites or softwa...

Cross-site Scripting (XSS)

syncope-core-persistence-jpa is vulnerable to cross-site scripting XSS attacks. The vulnerability exists due to the lack of sanitization on Connector names, Report names, and AnyTypeClass keys, allowing persistent XSS attacks...

Windows Persistent Service Installer

This Module will generate and upload an executable to a remote host. It will create a new service which will start the payload whenever the service is running. Admin or system privilege is required. Module Options msf use exploit/windows/persistence/service msf undefinedservice show actions...

Threat Roundup for October 12 to October 19

Today, as we do every week, Talos is giving you a glimpse into the most prevalent threats we’ve observed this week — covering the dates between Oct. 12 and 19. As with previous roundups, this post isn’t meant to be an in-depth analysis. Instead, we will summarize the threats we’ve observed by...

Apache serialization mechanism does not have a list of classes allowed for serialization/deserialization

In Apache Ignite 2.3 or earlier, the serialization mechanism does not have a list of classes allowed for serialization/deserialization, which makes it possible to run arbitrary code when 3-rd party vulnerable classes are present in Ignite classpath. The vulnerability can be exploited if the one...

Shining a Light on a New Technique for Stealth Persistence

Red teamers like myself and my team are driven by a desire to out-innovate the bad guys – to help the good guys. We study their methods, strive to think like they do, work to better understand attacker techniques and test our mettle against the spectrum of technologies in use today to find new wa...

FruityArmor Apt Exploits Yet Another Windows Graphics Kernel Flaw

A just-patched zero-day vulnerability in win32k.sys – the Windows graphics kernel component – is at the heart of a probable sighting of the FruityArmor APT group – an under-the-radar cyberespionage gang active in the Middle East. A recent campaign uncovered by Kaspersky Lab led researchers to the...

LoJack for computers used to attack European government bodies

Security researchers have detected the first known instance of a UEFI bootkit being used in targeted campaigns against government entities across Central and Eastern Europe. The attack focuses on UFEI-enabled computers and relies on a persistence mechanism that has been stolen from a legitimate,...

[SECURITY] Fedora 28 Update: haproxy-1.8.14-1.fc28

HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments. Indeed, it can: - route HTTP requests depending on statically assigned cookies - spread load among several servers while assuring server persistence through the use of HTTP cookies - switch to...

[SECURITY] Fedora 29 Update: haproxy-1.8.14-1.fc29

HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments. Indeed, it can: - route HTTP requests depending on statically assigned cookies - spread load among several servers while assuring server persistence through the use of HTTP cookies - switch to...

Cybersecurity Researchers Spotted First-Ever UEFI Rootkit in the Wild

Cybersecurity researchers at ESET have unveiled what they claim to be the first-ever UEFI rootkit being used in the wild, allowing hackers to implant persistent malware on the targeted computers that could survive a complete hard-drive wipe. Dubbed LoJax, the UEFI rootkit is part of a malware...

Cybersecurity Researchers Spotted First-Ever UEFI Rootkit in the Wild

Cybersecurity researchers at ESET have unveiled what they claim to be the first-ever UEFI rootkit being used in the wild, allowing hackers to implant persistent malware on the targeted computers that could survive a complete hard-drive wipe. Dubbed LoJax , the UEFI rootkit is part of a malware...

Brave Software: RCE: DnDing shortcut files to chrome://brave allows loading HTML files in Muon's context

Summary: \395737 has shown that Brave supports chrome://brave/ URLs. The Brave team introduced a patch which blocks navigation to chrome://brave and removed chrome.remote.require to prevent command execution on the machine. Navigation to chrome://brave via shortcut files From my understanding: 1...

Click It Up: Targeting Local Government Payment Portals

FireEye has been tracking a campaign this year targeting web payment portals that involves on-premise installations of Click2Gov. Click2Gov is a web-based, interactive self-service bill-pay software solution developed by Superion. It includes various modules that allow users to pay bills associat...

Active Campaign Exploits Critical Apache Struts 2 Flaw in the Wild

It was only a matter of time before attacks were seen in the wild, and now it’s happened. A known threat actor has mounted a large cryptomining campaign using the recently disclosed Apache Struts 2 critical remote code-execution vulnerability. It uses a new malware designed for persistence and...

Comparison of Open Source Adversary Emulation Tools

PenTestIT RSS Feed If you liked my older post titled "List of Adversary Emulation Tools", I am sure you must want to know what is the difference or comparison between the different tools. This post is an attempt to do just that -to list down the comparison of open source adversary emulation tools...

Threat Roundup for August 24-31

Today, as we do every week, Talos is giving you a glimpse into the most prevalent threats we’ve observed this week — covering the dates between Aug. 24 and 31. As with previous roundups, this post isn’t meant to be an in-depth analysis. Instead, we will summarize the threats we’ve observed by...

CVE-2018-1999045: Improper Authentication

A improper authentication vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in SecurityRealm.java, TokenBasedRememberMeServices2.java that allows attackers with a valid cookie to remain logged in even if that feature is disabled...

Autostart Desktop Item Persistence

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Autostart Desktop Item Persistence', 'Description' = %q This module will create an autostart entry to execute a payload. The payload will be...