openmls has improper tag validation

Membership and confirmation tags may not be checked correctly due to a missing length check. Any tag that is shorter than the expected tag, but matches up to its length, as well as any empty tag is considered valid. Impact The vulnerability affects a secondary authentication guarantee that MLS...

📄 MiniCMS 1.11 Exploitation Toolkit

This toolkit focuses on validating and demonstrating the impact of a known and documented design flaw in MiniCMS 1.11 related to its build process CVE-2018-1000638. MiniCMS relies on an insecure build.php script that blindly packages filesystem contents into install.php without enforcing integrit...

Notepad++ 8.9 Persistence Module

This Metasploit post-exploitation module abuses a legitimate Notepad++ feature by modifying the shortcuts.xml configuration file to register a custom external tool. The added tool appears in the Notepad++ Run menu and executes a user-defined command when manually selected by the user. This...

Bounty Hunter: Autonomous, Comprehensive Emulation of Multi-Faceted Adversaries

Adversary emulation is an essential procedure for cybersecurity assessments such as evaluating an organization's security posture or facilitating structured training and research in dedicated environments. To allow for systematic and time-efficient assessments, several approaches from academia an...

ReVault! When your SoC turns against you…

Talos reported 5 vulnerabilities to Broadcom and Dell affecting both the ControlVault3 Firmware and its associated Windows APIs that we are calling "ReVault". 100+ models of Dell Laptops are affected by this vulnerability if left unpatched. The ReVault attack can be used as a post-compromise...

⚡ Weekly Recap: Windows 0-Day, VPN Exploits, Weaponized AI, Hijacked Antivirus and More

Attackers aren't waiting for patches anymore — they are breaking in before defenses are ready. Trusted security tools are being hijacked to deliver malware. Even after a breach is detected and patched, some attackers stay hidden. This week's events show a hard truth: it's not enough to react afte...

QSC: A multi-plugin framework used by CloudComputating group in cyberespionage campaigns

Introduction In 2021, we began to investigate an attack on the telecom industry in South Asia. During the investigation, we discovered QSC: a multi-plugin malware framework that loads and runs plugins modules in memory. The framework includes a Loader, a Core module, a Network module, a Command...

The 3 most common post-compromise tactics on network infrastructure

Weve been discussing networking devices quite a lot recently and how Advanced Persistent Threat actors APTs are using highly sophisticated tactics to target aging infrastructure for espionage purposes. Some of these attacks are also likely prepositioning the APTs for future disruptive or...

Raspberry Robin worm part of larger ecosystem facilitating pre-ransomware activity

Microsoft has discovered recent activity indicating that the Raspberry Robin worm is part of a complex and interconnected malware ecosystem, with links to other malware families and alternate infection methods beyond its original USB drive spread. These infections lead to follow-on...

Raspberry Robin worm part of larger ecosystem facilitating pre-ransomware activity

Microsoft has discovered recent activity indicating that the Raspberry Robin worm is part of a complex and interconnected malware ecosystem, with links to other malware families and alternate infection methods beyond its original USB drive spread. These infections lead to follow-on...

New Chinese Malware Attack Framework Targets Windows, macOS, and Linux Systems

A previously undocumented command-and-control C2 framework dubbed Alchimist is likely being used in the wild to target Windows, macOS, and Linux systems. "Alchimist C2 has a web interface written in Simplified Chinese and can generate a configured payload, establish remote sessions, deploy payloa...

SolarWinds Hackers Using New Post-Exploitation Backdoor ‘MagicWeb’

By Deeba Ahmed Microsoft has warned that the new post-compromise backdoor MagicWeb lets hackers "authenticate as anyone." This is a post from HackRead.com Read the original post: SolarWinds Hackers Using New Post-Exploitation Backdoor MagicWeb...

Microsoft Uncovers New Post-Compromise Malware Used by Nobelium Hackers

The threat actor behind the SolarWinds supply chain attack has been linked to yet another "highly targeted" post-exploitation malware that could be used to maintain persistent access to compromised environments. Dubbed MagicWeb by Microsoft's threat intelligence teams, the development reiterates...

MagicWeb: NOBELIUM’s post-compromise trick to authenticate as anyone

Updated August 26, 2022: Added instructions to enable collection of AD FS event logs in order to search for Event ID 501, and added a new resource for AD FS audit logging in Microsoft Sentinel. Microsoft security researchers have discovered a post-compromise capability we’re calling MagicWeb, whi...

Malware Analysis: Trickbot

In this day and age, we are not dealing with roughly pieced together, homebrew type of viruses anymore. Malware is an industry, and professional developers are found to exchange, be it by stealing one's code or deliberate collaboration. Attacks are multi-layer these days, with diverse sophisticat...

Phony Call Centers Tricking Users Into Installing Ransomware and Data-Stealers

An ongoing malicious campaign that employs phony call centers has been found to trick victims into downloading malware capable of data exfiltration as well as deploying ransomware on infected systems. The attacks — dubbed "BazaCall" — eschew traditional social engineering techniques that rely on...

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...

Using Aviary to Analyze Post-Compromise Threat Activity in M365 Environments

Aviary is a new dashboard that CISA and partners developed to help visualize and analyze outputs from its Sparrow detection tool released in December 2020. Sparrow helps network defenders detect possible compromised accounts and applications in Azure/Microsoft O365 environments. CISA created...

Using CHIRP to Detect Post-Compromise Threat Activity in On-Premises Environments

CISA Hunt and Incident Response Program CHIRP is a new forensics collection tool that CISA developed to help network defenders find indicators of compromise IOCs associated with the SolarWinds and Active Directory/M365 Compromise. CHIRP is freely available on the CISA GitHub repository. Similar t...

Researchers Discover Raindrop — 4th Malware Linked to the SolarWinds Attack

Cybersecurity researchers have unearthed a fourth new malware strain—designed to spread the malware onto other computers in victims' networks—which was deployed as part of the SolarWinds supply chain attack disclosed late last year. Dubbed "Raindrop" by Broadcom-owned Symantec, the malware joins...