Attackers steal and encrypt organizations’ data without demanding a ransom.
A new politically motivated hacker group called Moses Staff is believed to be behind a wave of targeted attacks on Israeli organizations that began in September 2021. Hackers stole confidential information from the attacked networks, after which they encrypted the files of their victims without the possibility of restoring access or negotiating a ransom.
“The group openly declares that it attacks Israeli organizations with the aim of causing damage by leaking stolen sensitive data and encrypting victims’ networks without demanding ransom. In the language of the attackers themselves, their goal is to ‘fight the resistance and expose the crimes of the Zionists in the occupied territories'”, – reported researchers of the information security company Check Point.
To date, 16 Israeli organizations have become victims of the leak.
Attackers use known vulnerabilities to compromise corporate servers and gain initial access. After the hack, they deploy custom web shells on servers through which they install additional malware. After gaining access to the attacked organization’s network, the hackers use the available lateral movement and malware deployment techniques to encrypt computers using specially configured PyDCrypt malware.
The attackers use the open source library DiskCryptor to encrypt volumes, and in addition, they infect the system with a bootloader that blocks it from loading without an appropriate encryption key. The goal of the hackers is to disrupt operations and cause “irreversible damage” to victims, the researchers explained.
In some cases, encrypted files can be recovered because attackers use a symmetric mechanism to generate encryption keys.
Check Point specialists did not attribute the attacks to any particular country, as they did not find enough solid evidence. However, they found that some artifacts of the group’s tools had been uploaded to VirusTotal from Palestine months before the first attack.
The Moses Staff has a Twitter page and Telegram channel for posting their attacks. According to the group’s website, it attacked 257 sites and stole 34 TB of files and documents.
Vulnerability found in the Apple M1 processor that cannot be closed programmatically
Specialists from the Computer Science and Artificial Intelligence Laboratory (CSAIL) from the Massachusetts Institute of Technology said that they were able to develop a PACMAN attack technique, which is possible due to a hardware vulnerability in the Apple M1 processor. Moreover, it cannot be closed by software.
The attack itself is carried out using software and hardware, and it can be performed remotely. The PACMAN attack makes it possible to gain access to the kernel of the operating system. At the same time, potentially the same vulnerabilities can be in Qualcomm and Samsung processors, but this has not yet been confirmed.
The technical side of the attack is based on the Pointer Authentication function. It is used to check Pointer Authentication Codes (PACs), allowing only code-signed software to run. However, the PACMAN method allows you to select the necessary PAC values. In part, this technique is similar to Specter and Meltdown in Intel processors.
At the same time, Apple spokesman Scott Radcliffe said that the vulnerability does not pose an immediate threat to users and is not sufficient in itself to bypass operating system protections.
A few years ago, a vulnerability was already found in Arm processors that allows an attacker to gain unauthorized access to data.
So much for Unisoc. Companies have discovered a vulnerability in single-chip systems
Unisoc is actively capturing the market for single-chip systems, although it does so exclusively in the budget segment itself. However, it turned out that these platforms have a critical vulnerability.
According to the source, the problem is in the modem’s firmware and affects both 4G and 5G platforms. The vulnerability, numbered CVE-2022-20210, was discovered while scanning Non-Access Stratum (NAS) message handlers. This vulnerability could be used to neutralize or block the device’s cellular capabilities.
The vulnerability was first discovered in the Motorola Moto G20 smartphone based on the Unisoc T700 SoC. But in the end it turned out that the same vulnerability occurs in other platforms, however, the source did not provide a list.
The Check Point specialists who discovered the vulnerability notified Unisoc back in May, and the company has already released a fix, so smartphone owners should not worry now if they update the software of their devices.
New vulnerability in Microsoft Office is heavily exploited by hackers
A serious vulnerability has been found in the Microsoft Office suite that could potentially allow attackers to execute arbitrary code.
She was assigned the number CVE-2022-30190, and among the researchers they gave the name Follina. As noted in Kaspersky Lab, the most unpleasant thing is that there is no fix yet, and in the meantime, the vulnerability is already being actively exploited by attackers. Vulnerability CVE-2022-30190 threatens all operating systems of the Windows family, both regular and server.
While the update is being developed, experts recommend that all Windows users and administrators take advantage of temporary workarounds. As a Microsoft workaround recommends disable the MSDT URL protocol.
The CVE-2022-30190 vulnerability itself is contained in the Microsoft Windows Support Diagnostic Tool (MSDT), but due to the implementation of this tool, a single malicious office document is enough to exploit the vulnerability.
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