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This is the third documented campaign attributed to this actor in less than a year, with the actor reusing the same infrastructure throughout these operations.
Let's have a look at the threats brought by introduction of .zip TLD
The element originally known as “foul air” stinks up computers as a new initial-access campaign exhibiting some uncommon techniques
AhnLab Security Emergency response Center (ASEC) has confirmed the distribution of malware in the form of a batch file (*.bat). This malware is designed to download various scripts based on the anti-malware process, including AhnLab products, installed in the user’s environment. Based on the function names used by the malware and the downloaded URL parameters, it is suspected to have been distributed by the Kimsuky group.
Read Uptycs' analysis of the newly discovered Meduza Stealer malware targeting Windows users, revealing capabilities, potential impact & mitigation steps.
Threat actors are using increasingly sophisticated forms of evasion and anti-analysis as they respond to increased attention to macOS security in the enterprise.
The infamous Clop ransomware, mainly known as Cl0p, targets various industries and organizations, extorting data for a huge amount of ransom. It advances actively with new emerging campaigns. This blog walks through the Clop timeline, Mitre TTPs and their emulation.
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.
I stumbled upon an intriguing concept presented by Will Thomas (BushidoToken) in his blog post titled “Unmasking Ransomware Using Stylometric Analysis: Shadow, 8BASE, Rancoz.” This concept revolves around utilizing stylometry to identify potential modifications in new ransomware variants based on existing popular strains. If you’re interested, you can read the blog post here. (Notably, Will Thomas also appeared on Dark Net Diaries, discussing his tracking of the Revil ransomware.)
Deep Instinct’s Threat Research Lab recently noticed a new strain of a JavaScript-based dropper that is delivering Bumblebee and IcedID. The dropper contains comments in Russian and employs the unique user-agent string “PindOS”, which may be a reference to current (and past) anti-American sentiment in Russia.
Bumblebee is a malware loader first discovered in March 2022. It was associated with Conti group and was being used as a replacement for BazarLoader. It acts as a primary vector for multiple types of other malware, including ransomware.
IcedID is a modular banking malware designed to steal financial information. It has been seen in the wild since at least 2017 and has recently been observed shifting some of its focus to malware delivery.
Since March 2023, Unit 42 researchers have observed threat actors leveraging several IoT vulnerabilities to spread a variant of the Mirai botnet.
Microsoft attributes several campaigns to a distinct Russian state-sponsored threat actor tracked as Cadet Blizzard (DEV-0586), including the WhisperGate destructive attack, Ukrainian website defacements, and the hack-and-leak front “Free Civilian”.
The commercial attack tool’s use by bad actors has faded after an initial flurry, while Cobalt Strike remains the go-to post-exploitation tool for many.
Affected Platforms: FortiOS
Impacted Users: Targeted at government, manufacturing, and critical infrastructure
Impact: Data loss and OS and file corruption
Severity Level: Critical
Today, Fortinet published a CVSS Critical PSIRT Advisory (FG-IR-23-097 / CVE-2023-27997) along with several other SSL-VPN related fixes. This blog adds context to that advisory, providing our customers with additional details to help them make informed, risk-based decisions, and provides our perspective relative to recent events involving malicious actor activity.
When Lexfo Security teased a critical pre-authentication RCE bug in FortiGate devices on Saturday 10th, many people speculated on the practical impact of the bug. Would this be a true, sky-is-falling level vulnerability like the recent CVE-2022-42475? Or was it some edge-case hole, requiring some unusual and exotic requisite before any exposure? Others even went further, questioning the legitimacy of the bug itself. Details were scarce and guesswork was rife.
Analyzing CVE-2023-29336 Win32k vulnerability, its exploitation, and mitigation measures in the context of evolving security practices.
On May 31, threat actors were discovered targeting a critical zero day in MOVEit Transfer software resulting in escalated privileges and unauthorized data access. The vulnerability being exploited is an SQL injection and has since been patched. Resources links, including one for the patch, are at the bottom of this post.
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...
