ShadowVault is the latest Mac data-stealer malware, reportedly
ShadowVault data stealer Mac malware made headlines in the Apple press this week. Here is what we know about it so far.
The Spies Who Loved You: Infected USB Drives to Steal Secrets
In the first half of 2023, we observed a threefold increase in the number of attacks using infected USB drives to steal secrets.
Malvertising Used as Entry Vector for BlackCat Actors Also Leverage SpyBoy Terminator
We found that malicious actors used malvertising to distribute malware via cloned webpages of legitimate organizations. The distribution involved a webpage of the well-known application WinSCP, an open-source Windows application for file transfer. We were able to identify that this activity led to a BlackCat (aka ALPHV) infection, and actors also used SpyBoy, a terminator that tampers with protection provided by agents.
Malware Execution Method Using DNS TXT Record
AhnLab Security Emergency response Center (ASEC) has confirmed instances where DNS TXT records were being utilized during the execution process of malware. This is considered meaningful from various perspectives, including analysis and detection as this method has not been widely utilized as a means of executing malware.
Meduza Stealer or The Return of The Infamous Aurora Stealer
Meduza Stealer malware analysis
Microsoft Teams vulnerability allows attackers to deliver malware to employees
Security researchers have found a bug that could allow attackers to deliver malware directly into employees' Microsoft Teams inbox.
PyPI Attackers Still At It: Malicious Packages Drop Trojans and Info-stealers
Sonatype's malicious open source and malware detection systems found hundreds of malicious PyPI packages.
Fragments of Cross-Platform Backdoor Hint at Larger Mac OS Attack
During routine detection maintenance, our Mac researchers stumbled upon a small set of files with backdoor capabilities that seem to form part of a more complex malware toolkit. The following analysis is incomplete, as we are trying to identify the puzzle pieces that are still missing.
Dissecting TriangleDB, a Triangulation spyware implant
In researching Operation Triangulation, we set ourselves the goal to retrieve as many parts of the exploitation chain as possible. As of now, we have finished analyzing the spyware implant and are ready to share the details.
Accidentally Crashing a Botnet
As part of our research into the cryptomining botnet kmsdbot, we rendered it useless.
Shc Linux Malware Installing CoinMiner
The ASEC analysis team recently discovered that a Linux malware developed with Shc has been installing a CoinMiner. It is presumed that after successful authentication through a dictionary attack on inadequately managed Linux SSH servers, various malware were installed on the target system. Among those installed were the Shc downloader, XMRig CoinMiner installed through the former, and DDoS IRC Bot, developed with Perl.
Microsoft links Raspberry Robin malware to Evil Corp attacks
Microsoft has discovered that an access broker it tracks as DEV-0206 uses the Raspberry Robin Windows worm to deploy a malware downloader on networks where it also found evidence of malicious activity matching Evil Corp tactics.
Il malware EnvyScout (APT29) è stato veicolato anche in Italia
Il malware EnvyScout (APT29) è stato veicolato anche in Italia
Microsoft finds Raspberry Robin worm in hundreds of Windows networks
Microsoft says that a recently spotted Windows worm has been found on the networks of hundreds of organizations from various industry sectors.
Flubot: the evolution of a notorious Android Banking Malware
Flubot is an Android based malware that has been distributed in the past 1.5 years in Europe, Asia and Oceania affecting thousands of devices of mostly unsuspecting victims. Like the majority of Android banking malware, Flubot abuses Accessibility Permissions and Services in order to steal the victim’s credentials, by detecting when the official banking application is open to show a fake web injection, a phishing website similar to the login form of the banking application. An important part of the popularity of Flubot is due to the distribution strategy used in its campaigns, since it has been using the infected devices to send text messages, luring new victims into installing the malware from a fake website. In this article we detail its development over time and recent developments regarding its disappearance, including new features and distribution campaigns.
BRATA is evolving into an Advanced Persistent Threat
Here we go with another episode about our (not so) old friend, BRATA. In almost one year, threat actors (TAs) have further improved the capabilities of this malware. In our previous blog post [1] we defined three main BRATA variants, which appeared during two different waves detected by our telemetries at the very end of 2021. However, during the last months we have observed a change in the attack pattern commonly used.
Linux Threat Hunting: 'Syslogk' a kernel rootkit found under development in the wild
Introduction Rootkits are dangerous pieces of malware. Once in place, they are usually really hard to detect. Their code is typically more challenging to write than other malware, so developers resort to code reuse from open source projects. As rootkits are very interesting to analyze, we are always looking out for these kinds of samples […]
Gimmick MacOS Malware Spreads Through Customized Files, Enables MacOS CodeSign Bypass - CloudSEK
We discovered that Gimmick MacOS malware communicates only through their C2 server hosted on Google Drive. The malware was discovered in the first week of May and it has been actively targeting macOS devices
Researchers devise iPhone malware that runs even when device is turned off
Research is largely theoretical but exposes an overlooked security issue.
A closer look at Eternity Malware
In this analysis, Cyble looks at the Eternity Malware suite, listing a wide variety of malware for sale on Telegram.
Russia’s Sandworm hackers attempted a third blackout in Ukraine
The attack was the first in five years to use Sandworm's Industroyer malware.
Raccoon Stealer: “Trash panda” abuses Telegram
We recently came across a stealer, called Raccoon Stealer, a name given to it by its author. Raccoon Stealer uses the Telegram infrastructure to store and update actual C&C addresses. Raccoon Stealer is a password stealer capable of stealing not just passwords, but various types of data, including: Cookies, saved logins and forms data from […]
Malware now using stolen NVIDIA code signing certificates
Threat actors are using stolen NVIDIA code signing certificates to sign malware to appear trustworthy and allow malicious drivers to be loaded in Windows. This week, NVIDIA confirmed that they suffered a cyberattack that allowed threat actors to steal employee credentials and proprietary data.
Phishing attacks target countries aiding Ukrainian refugees
A spear-phishing campaign likely coordinated by a state-backed threat actor has been targeting European government personnel providing logistics support to Ukrainian refugees.
Destructive Malware Targeting Organizations in Ukraine
Actions to Take Today: • Set antivirus and antimalware programs to conduct regular scans. • Enable strong spam filters to prevent phishing emails from reaching end users. • Filter network traffic. • Update software. • Require multifactor authentication. Leading up to Russia’s unprovoked attack against Ukraine, threat actors deployed destructive malware against organizations in Ukraine to destroy computer systems and render them inoperable.
TrickBot malware operation shuts down, devs move to BazarBackdoor
The TrickBot malware operation has shut down after its core developers move to the Conti ransomware gang to focus development on the stealthy BazarBackdoor and Anchor malware families.
Linux-Targeted Malware Increases by 35% in 2021
CrowdStrike has observed that malware targeting Linux-based systems increased by 35% in 2021. XorDDoS, Mirai and Mozi were the most common malware families.
Unpacking RDStealer: An Exfiltration Malware Targeting RDP Workloads
In June 2023, Bitdefender Labs published a research paper about espionage operation in East Asia. This operation was ongoing since at least the beginning of 2022, showing a high level of sophistication typically associated with state-sponsored groups. Despite trying various methods, we have been unable to attribute these attacks to a specific threat actor, but the target aligns with the interest of China-based threat actors.
Fake Security Researcher GitHub Repositories Deliver Malicious Implant
VulnCheck discovers a network of fake security researcher accounts promoting hidden malware.
GobRAT malware written in Go language targeting Linux routers
JPCERT/CC has confirmed attacks that infected routers in Japan with malware around February 2023. This blog article explains the details of the attack confirmed by JPCERT/CC and GobRAT malware, which was used in the attack. ### Attack flow up to...