Effective Threat-Hunting Queries in a Redacted World

A decade ago, hunting for adversary infrastructure was often as simple as monitoring a domain registrant’s name or phone number in public WHOIS records. As bad actors have moved first toward privacy protection services and then gained further obscurity behind laws such as the General Data...

CVE-2021-33191 MiNiFi CPP arbitrary script execution is possible on the agent's host machine through the c2 protocol

From Apache NiFi MiNiFi C++ version 0.5.0 the c2 protocol implements an "agent-update" command which was designed to patch the application binary. This "patching" command defaults to calling a trusted binary, but might be modified to an arbitrary value through a "c2-update" command. Said command ...

InkySquid State Actor Exploiting Known IE Bugs

The InkySquid advanced persistent threat APT group, which researchers have linked to the North Korean government, was caught launching watering hole attacks against a South Korean newspaper using known Internet Explorer vulnerabilities. New analysis from Volexity reported its team of researchers...

PickleC2 - A Post-Exploitation And Lateral Movements Framework

PickleC2 is a post-exploitation and lateral movements framework. Documentation ReadTheDocs Overview PickleC2 is a simple C2 framework written in python3 used to help the community in Penetration Testers in their red teaming engagements. PickleC2 has the ability to import your own PowerShell modul...

Nimplant - A Cross-Platform Implant Written In Nim

Nimplant is a cross-platform Linux & Windows implant written in Nim as a fun project to learn about Nim and see what it can bring to the table for red team tool development. Currently, Nimplant lacks extensive evasive tradecraft; however, overtime Nimplant will become much more sophisticated...

CVE-2021-36798

A Denial-of-Service DoS vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it...

Denial of service

A Denial-of-Service DoS vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it...

CVE-2021-36798

A Denial-of-Service DoS vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it...

Black Hat 2021: Rapid7 Experts Share Key Day 2 Takeaways

Here we are again, back for another day of Rapid7 expert debriefings and analysis for some of the most talked-about Black Hat sessions of this year. So without further delay, let’s take it away! Get more DEF CON 2021 insights from our Research team on Tuesday, August 10 Sign up for our What...

CVE-2021-37388

A buffer overflow in D-Link DIR-615 C2 3.03WW. The pingipaddr parameter in pingresponse.cgi POST request allows an attacker to crash the webserver and might even gain remote code execution...

CVE-2021-37388

A buffer overflow in D-Link DIR-615 C2 3.03WW. The pingipaddr parameter in pingresponse.cgi POST request allows an attacker to crash the webserver and might even gain remote code execution...

CVE-2021-37388

A buffer overflow in D-Link DIR-615 C2 3.03WW. The pingipaddr parameter in pingresponse.cgi POST request allows an attacker to crash the webserver and might even gain remote code execution...

CVE-2021-37388

CVE-2021-37388 affects the D-Link DIR-615 C2 router (firmware 3.03WW). A buffer overflow in the ping_ipaddr parameter of the ping_response.cgi POST request allows an attacker to crash the webserver and may enable remote code execution. The connected documents confirm the component and root cause ...

Experts Uncover Several C&C Servers Linked to WellMess Malware

Cybersecurity researchers on Friday unmasked new command-and-control C2 infrastructure belonging to the Russian threat actor tracked as APT29, aka Cozy Bear, that has been spotted actively serving WellMess malware as part of an ongoing attack campaign. More than 30 C2 servers operated by the...

Trickbot Malware Rebounds with Virtual-Desktop Espionage Module

The Trickbot trojan is in resurgence mode, with its operators filling out infrastructure globally and releasing an updated version of its “vncDll” module, used for monitoring and intelligence gathering, researchers said. According to an analysis this week from Bitdefender, there has been “a...

Hackers Trick Microsoft Into Signing Netfilter Driver Loaded With Rootkit Malware

Microsoft on Friday said it's investigating an incident wherein a driver signed by the company turned out to be a malicious Windows rootkit that was observed communicating with command-and-control C2 servers located in China. The driver, called "Netfilter," is said to target gaming environments,...

Spam Downpour Drips New IcedID Banking Trojan Variant

Researchers have seen a new variant of the IcedID banking trojan sliding in via two new spam campaigns. Written in English and carrying .ZIP files full of the malware – or links to such ZIP files – the new twist on the old banking trojan is a tweaked downloader, which the threat actors moved from...

NamedPipePTH - Pass The Hash To A Named Pipe For Token Impersonation

This project is a PoC code to use Pass-the-Hash for authentication on a local Named Pipe user Impersonation. There also is a blog post for explanation: https://s3cur3th1ssh1t.github.io/Named-Pipe-PTH/ It is heavily based on the code from the projects Invoke-SMBExec.ps1 and RoguePotato. I faced...

A New Spyware is Targeting Telegram and Psiphon VPN Users in Iran

Threat actors with suspected ties to Iran have been found to leverage instant messaging and VPN apps like Telegram and Psiphon to install a Windows remote access trojan RAT capable of stealing sensitive information from targets' devices since at least 2015. Russian cybersecurity firm Kaspersky,...

Live Cybersecurity Webinar — Deconstructing Cobalt Strike

Organizations' cybersecurity capabilities have improved over the past decade, mostly out of necessity. As their defenses get better, so do the methods, tactics, and techniques malicious actors devise to penetrate their environments. Instead of the standard virus or trojan, attackers today will...