Critical Vulnerabilities in PaperCut Print Management Software
Our team is tracking in-the-wild exploitation of zero-day vulnerabilities against PaperCut MF/NG which allow for unauthenticated remote code execution due to an authentication bypass.
We learned some remarkable new details this week about the recent supply-chain attack on VoIP software provider 3CX, a complex, lengthy intrusion that has the makings of a cyberpunk spy novel: North Korean hackers using legions of fake executive accounts…
Web3 technologies are seeing widespread adoption — including by TAs. We discuss Web3 technology InterPlanetary File System (IPFS), and malicious use of it.
ntpd is not vulnerable · Issue #1 · spwpun/ntp-4.2.8p15-cves
The first four of these CVEs affect a function in libntp that is only used by ntpq, but not by ntpd. The last CVE affects the driver for a hardware clock (GPS receiver), so ntpd might be vulnerable...
LockBit for Mac | How Real is the Risk of macOS Ransomware?
Discovery of a macOS variant of LockBit has caused alarm, but how serious a threat is it? We explore the malware and the threat of ransomware on Apple Macs.
Summary of the Investigation Related to CVE-2023-0669
We’d like to provide an update on our investigation into the suspicious activity detected in our Fortra GoAnywhere MFT solution. Working with Unit 42, we have completed our investigation and have compiled a factual summary of the investigation, as well as continuous improvement actions Fortra is taking to further strengthen our systems and recommended actions customers can take to secure their data and improve their security posture using available features in the GoAnywhere MFT solution.
Triple Threat: NSO Group’s Pegasus Spyware Returns in 2022 with a Trio of iOS 15 and iOS 16 Zero-Click Exploit Chains
One widely publicized case of disappearances relevant to this case of spyware infection occurred in September 2015 when a group of 43 students at a teacher
QBot banker delivered through business correspondence
In early April, we detected a significant increase in attacks that use banking Trojans of the QBot family. The malware would be delivered through e-mails that were based on real business letters the attackers had gotten access to.
On April 12th, 2023, Microsoft released a slew of new patches for its Windows operating system, one of which was to fix CVE-2023-21554, a remotely-exploitable vulnerability in the obscure Windows Message Queuing (MSMQ) service that can lead to remote code execution (RCE).
The relevance of this macOS specimen is well articulated in their tweet: “Lockbit ransomware group has created their first MacOS-based payload. We believe this is the first time a large ransomware threat group has developed a payload for Apple products.” vx-underground Ok, so even though it’s the weekend, we have what appears to be a new macOS malware specimen from one of the more notorious ransomware gangs! Coupled with the fact that this may be, (as noted by @VXUnderground), “the first time a large ransomware threat group has developed a payload for Apple products” …I was intrigued to decided to dig right in!
Remote Code Execution Vulnerability in Google They Are Not Willing To Fix
This is a story about a security vulnerability in Google that allowed me to run arbitrary code on the computers of 50+ Google employees. Although Google initially considered my finding a serious security incident, later on, it changed its mind and stated that my finding is not, in fact, a vulnerability, but the intended behavior of their software.
Mac Monitor is Red Canary’s newly available tool for collection and dynamic system analysis on macOS endpoints. Red Canary Mac Monitor is a feature-rich dynamic analysis tool for macOS that leverages our extensive understanding of the platform and Apple’s latest APIs to collect and present relevant security events. Mac Monitor is practically the macOS version of the Microsoft Sysinternals tool, Procmon. Mac Monitor collects a wide variety of telemetry classes, including processes, interprocess, files, file metadata, logins, XProtect detections, and more—enabling defenders to quickly and effectively analyze enriched, high-fidelity macOS security events in a native, modern, and customizable user interface
CyberArk Labs discovered a new malware called Vare that is distributed over the popular chatting service, Discord. Vare has been used to target new malware operators by using social engineering tactics on them. Additionally, we have found that Vare uses Discord’s infrastructure as a backbone for its operations. This malware is linked to a new group called “Kurdistan 4455” based out of southern Turkey and is still early in its forming stage.
A Computer Generated Swatting Service Is Causing Havoc Across America
As the U.S. deals with a nationwide swatting wave, Motherboard has traced much of the activity to a particular swatting-as-a-service account on Telegram. Torswats uses synthesized voices to pressure law enforcement to specific locations.
Espionage campaign linked to Russian intelligence services
The Military Counterintelligence Service and the CERT Polska team (CERT.PL) observed a widespread espionage campaign linked to Russian intelligence services
Discord member details how documents leaked from closed chat group
The man behind a massive leak of U.S. government secrets that has exposed spying on allies, revealed the grim prospects for Ukraine’s war with Russia and ignited diplomatic fires for the White House is a young, charismatic gun enthusiast who shared highly classified documents with a group of far-flung acquaintances searching for companionship amid the isolation of the pandemic.
in February 2023, Kaspersky technologies detected a number of attempts to execute similar elevation-of-privilege exploits on Microsoft Windows servers belonging to small and medium-sized businesses in the Middle East, in North America, and previously in Asia regions. These exploits were very similar to already known Common Log File System (CLFS) driver exploits that we analyzed previously, but we decided to double check and it was worth it – one of the exploits turned out to be a zero-day, supporting different versions and builds of Windows, including Windows 11. The exploit was highly obfuscated with more than 80% of the its code being “junk” elegantly compiled into the binary, but we quickly fully reverse-engineered it and reported our findings to Microsoft. Microsoft assigned CVE-2023-28252 to the Common Log File System elevation-of-privilege vulnerability, and a patch was released on April 11, 2023, as part of April Patch Tuesday.