CVE-2019-13266

TP-Link Archer C3200 V1 and Archer C2 V1 devices have Insufficient Compartmentalization between a host network and a guest network that are established by the same device. A DHCP Request is sent to the router with a certain Transaction ID field. Following the DHCP protocol, the router responds wi...

CVE-2019-13267

TP-Link Archer C3200 V1 and Archer C2 V1 devices have Insufficient Compartmentalization between a host network and a guest network that are established by the same device. In order to transfer data from the host network to the guest network, the sender joins and then leaves an IGMP group. After i...

CVE-2019-13267

The CVE-2019-13267 entry concerns TP-Link Archer C3200 V1 and Archer C2 V1 routers with insufficient isolation between host and guest networks on the same device. The root cause is a mechanism where, during IGMP group joins/leaves, the router creates an IGMP Membership Query using the Group IP, s...

PoshC2 - C2 Server and Implants

PoshC2 is a proxy aware C2 framework that utilises Powershell and/or equivalent System.Management.Automation.dll to aid penetration testers with red teaming, post-exploitation and lateral movement. Powershell was chosen as the base implant language as it provides all of the functionality and rich...

Adwind Spyware-as-a-Service Attacks Utility Grid Operators

A phishing campaign that spoofs a PDF attachment to deliver Adwind spyware has been taking aim at national grid utilities infrastructure. Adwind, a.k.a. JRAT or SockRat, is being used in a malware-as-a-service model in this campaign, researchers said. It offers a full cadre of info-gathering...

goDoH - A DNS-over-HTTPS C2

godoh is a proof of concept Command and Control framework, written in Golang, that uses DNS-over-HTTPS as a transport medium. Currently supported providers include Google, Cloudflare but also contains the ability to use traditional DNS. Installation All you would need are the godoh binaries...

CB TAU Threat Intelligence Notification – Karagany Malware

Secureworks recently reported in regards to an update of Karagany malware last month. The malware is used by the IRON LIBERTY threat group also known as DragonFly2.0 and Energetic Bear, targeting energy companies and organizations. Carbon Black Threat Analysis Unit TAU provides the product rules ...

UPDATE: SILENTTRINITY v0.3.0

PenTestIT RSS Feed Just yesterday, I wrote about this open source post-exploitation C2 framework and a new release is already available. The post was titled - List of Open Source C2 Post-Exploitation Frameworks. We now have SILENTTRINITY v0.3.0 amongst us, which was in the works for a long time!...

List of Open Source C2 Post-Exploitation Frameworks

PenTestIT RSS Feed This post has been lying in my drafts for more than a year with edits all over. But two days ago, it was announced that Powershell Empire would no longer be supported by it's authors. Hence just like I curated a list of adversary emulation tools, I finalized this list of open...

Brand-New SystemBC Proxy Malware Spotted Using SOCKS5 for Stealth

A previously undocumented proxy malware, dubbed “SystemBC,” is upping the stealth game by using SOCKS5 to evade detection. It’s being distributed by the Fallout and RIG exploit kits EKs, according to researchers. Proofpoint researchers said on Thursday that in the most recently tracked example, t...

Nation-State Actors Go All-In on Mobile Malware

APTs, including a range of nation-state groups operating in China, North Korea, Pakistan and Russia, are shifting their malware development focus to target mobile users for intelligence gathering, financial gain and disruption of national rivals. That’s according to CrowdStrike’s Mobile Threat...

Malware Loader ‘Brushaloader’ Grows More Menacing

The tenacious loader malware called Brushaloader is growing more menacing, showing no signs of abatement despite best efforts by security professionals. First identified in June 2018, the Brushaloader malware is now more pervasive, stealthy and growing in popularity faster than ever before. New...

ViceLeaker Operation: mobile espionage targeting Middle East

In May 2018, we discovered a campaign targeting dozens of mobile Android devices belonging to Israeli citizens. Kaspersky spyware sensors caught the signal of an attack from the device of one of the victims; and a hash of the APK involved Android application was tagged in our sample feed for...

Sliver - Implant Framework

Sliver is a general purpose cross-platform implant framework that supports C2 over Mutual-TLS, HTTPS, and DNS. Implants are dynamically compiled with unique X.509 certificates signed by a per-instance certificate authority generated when you first run the binary. The server, client, and implant a...

Introducing Slackor, a Remote Access Tool Using Slack as a C2 Channel

As a penetration tester at Coalfire Labs, I frequently use exploitation frameworks such as Metasploit or PowerShell Empire to perform post-exploitation actions on compromised endpoints. While anti-virus AV bypass and detection avoidance is often trivial in all but the most mature environments,...

Forget BlueKeep: Beware the GoldBrute

While everyone’s talking about the BlueKeep Mega-Worm, this is not the main monster to fear, according to recent web attack activity. Rather, a researcher is warning that the GoldBrute botnet poses the greatest threat to Windows systems right now. In the past few days, GoldBrute named after the...

Sorpresa! JasperLoader targets Italy with a new bag of tricks

Nick Biasini and Edmund Brumaghin authored this blog post. Executive summary Over the past few months, a new malware loader called JasperLoader has emerged that targets Italy and other European countries with banking trojans such as Gootkit. We recently released a comprehensive analysis of the...

Threat Roundup for April 26 to May 3

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between April 26 and May 03. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics...

CARBANAK Week Part Four: The CARBANAK Desktop Video Player

Part One, Part Two and Part Three of CARBANAK Week are behind us. In this final blog post, we dive into one of the more interesting tools that is part of the CARBANAK toolset. The CARBANAK authors wrote their own video player and we happened to come across an interesting video capture from CARBAN...

Carbanak Source Code Unveils a Startlingly Complex Malware

A look under the hood of FIN7’s notorious Carbanak backdoor – the result of nearly 500 total hours of analysis across 100,000 lines of code and dozens of binaries – shows that the malware is highly sophisticated – more sophisticated than expected. It’s a Cadillac in a sea of golf carts, if you...