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Encrypted Messaging App Exclu Used by Criminal Groups Cracked by Joint Law Enforcement

Encrypted Messaging App Exclu Used by Criminal Groups Cracked by Joint Law Enforcement

Feb 07, 2023 Encryption / Privacy
A joint law enforcement operation conducted by Germany, the Netherlands, and Poland has cracked yet another encrypted messaging application named  Exclu  used by organized crime groups. Eurojust, in a press statement,  said  the February 3 exercise resulted in the arrests of 45 individuals across Belgium and the Netherlands, some of whom include users as well as the administrators and owners of the service, Authorities also launched raids in 79 locations, leading to the seizure of €5.5 million in cash, 300,000 ecstasy tablets, 20 firearms, and 200 phones. Two drug laboratories have further been shut down. Investigation into Exlcu is said to have commenced in Germany as far back as June 2020. The application, prior to its takedown, had an estimated 3,000 users, of which 750 are Dutch speakers. The Politie, in an announcement of its own, noted that it was able to gain covert access to the service, permitting the agency to read messages sent by its users for the past five months. &
Hackers Exploit Vulnerabilities in Sunlogin to Deploy Sliver C2 Framework

Hackers Exploit Vulnerabilities in Sunlogin to Deploy Sliver C2 Framework

Feb 07, 2023 Cyber Threat / Malware
Threat actors are leveraging known flaws in Sunlogin software to deploy the Sliver command-and-control (C2) framework for carrying out post-exploitation activities. The findings come from AhnLab Security Emergency response Center (ASEC), which found that security vulnerabilities in Sunlogin, a remote desktop program developed in China, are being abused to deploy a wide range of payloads. "Not only did threat actors use the Sliver backdoor, but they also used the  BYOVD  (Bring Your Own Vulnerable Driver) malware to incapacitate security products and install reverse shells," the researchers  said . Attack chains commence with the exploitation of two remote code execution bugs in Sunlogin versions prior to v11.0.0.33 (CNVD-2022-03672 and CNVD-2022-10270), followed by delivering Sliver or other malware such as  Gh0st RAT  and XMRig crypto coin miner. In one instance, the threat actor is said to have weaponized the Sunlogin flaws to install a PowerShell script that, in turn
Tackling the New Cyber Insurance Requirements: Can Your Organization Comply?

Tackling the New Cyber Insurance Requirements: Can Your Organization Comply?

Feb 07, 2023 Identity Protection / Cyber Insurance
With cyberattacks around the world escalating rapidly, insurance companies are ramping up the requirements to qualify for a cyber insurance policy.  Ransomware attacks were up 80% last year , prompting underwriters to put in place a number of new provisions designed to prevent ransomware and stem the record number of claims. Among these are a mandate to enforce multi-factor authentication (MFA) across all admin access in a network environment as well as protect all privileged accounts, specifically machine-to-machine connections known as service accounts.  But identifying MFA and privileged account protection gaps within an environment can be extremely challenging for organizations, as there is no utility among the most commonly used security and identity products that can actually provide this visibility. In this article, we'll explore these identity protection challenges and suggest steps organizations can take to overcome them, including signing up for a  free identity risk a
Linux Variant of Clop Ransomware Spotted, But Uses Faulty Encryption Algorithm

Linux Variant of Clop Ransomware Spotted, But Uses Faulty Encryption Algorithm

Feb 07, 2023 Encryption / Linux
The first-ever Linux variant of the Clop ransomware has been detected in the wild, but with a faulty encryption algorithm that has made it possible to reverse engineer the process. "The ELF executable contains a flawed encryption algorithm making it possible to decrypt locked files without paying the ransom," SentinelOne researcher Antonis Terefos  said  in a report shared with The Hacker News. The cybersecurity firm, which has made available a decryptor , said it observed the ELF version on December 26, 2022, while also noting its similarities to the Windows flavor when it comes using the same encryption method. The detected sample is said to be part of a larger attack targeting educational institutions in Colombia, including La Salle University, around the same time. The university was added to the criminal group's leak site in early January 2023, per  FalconFeedsio . Known to have been active since 2019, the Clop (stylized as Cl0p) ransomware operation  suffered
VMware Finds No Evidence of 0-Day in Ongoing ESXiArgs Ransomware Spree

VMware Finds No Evidence of 0-Day in Ongoing ESXiArgs Ransomware Spree

Feb 07, 2023 Endpoint Security / Zero-Day
VMware on Monday said it found no evidence that threat actors are leveraging an unknown security flaw, i.e., a zero-day, in its software as part of an  ongoing ransomware attack spree  worldwide. "Most reports state that End of General Support (EoGS) and/or significantly out-of-date products are being targeted with known vulnerabilities which were previously addressed and disclosed in VMware Security Advisories (VMSAs)," the virtualization services provider  said . The company is further recommending users to upgrade to the latest available supported releases of vSphere components to mitigate known issues and  disable the OpenSLP service  in ESXi. "In 2021, ESXi 7.0 U2c and ESXi 8.0 GA began shipping with the service disabled by default," VMware added. The announcement comes as unpatched and unsecured VMware ESXi servers around the world have been targeted in a  large-scale   ransomware campaign  dubbed ESXiArgs by likely exploiting a two-year-old bug VMware p
GuLoader Malware Using Malicious NSIS Executables to Target E-Commerce Industry

GuLoader Malware Using Malicious NSIS Executables to Target E-Commerce Industry

Feb 06, 2023 Cyber Attack / Endpoint Security
E-commerce industries in South Korea and the U.S. are at the receiving end of an ongoing GuLoader malware campaign, cybersecurity firm Trellix disclosed late last month. The malspam activity is notable for transitioning away from malware-laced Microsoft Word documents to NSIS executable files for loading the malware. Other countries targeted as part of the campaign include Germany, Saudi Arabia, Taiwan and Japan. NSIS , short for Nullsoft Scriptable Install System, is a script-driven open source tool used to develop installers for the Windows operating system. While attack chains in 2021 leveraged a ZIP archive containing a macro-laced Word document to drop an executable file tasked with loading GuLoader, the new phishing wave employs NSIS files embedded within ZIP or ISO images to activate the infection. "Embedding malicious executable files in archives and images can help threat actors evade detection," Trellix researcher Nico Paulo Yturriaga  said . Over the cours
Microsoft: Iranian Nation-State Group Sanctioned by U.S. Behind Charlie Hebdo Hack

Microsoft: Iranian Nation-State Group Sanctioned by U.S. Behind Charlie Hebdo Hack

Feb 06, 2023 Hacktivist / Cyber Attack
An Iranian nation-state group sanctioned by the U.S. government has been attributed to the hack of the French satirical magazine Charlie Hebdo in early January 2023. Microsoft, which disclosed details of the incident, is tracking the activity cluster under its chemical element-themed moniker  NEPTUNIUM , which is an Iran-based company known as Emennet Pasargad. In January 2022, the U.S. Federal Bureau of Investigation (FBI)  tied  the state-backed cyber unit to a sophisticated influence campaign carried out to  interfere  with the 2020 presidential elections. Two Iranian nationals have been indicted for their role in the disinformation and threat campaign. Microsoft's disclosure comes after a "hacktivist" group named Holy Souls (now identified as NEPTUNIUM) claimed to be in possession of the personal information of more than 200,000 Charlie Hebdo customers, including their full names, telephone numbers, and home and email addresses. The breach, which allowed NEPTUNI
SaaS in the Real World: Who's Responsible to Secure this Data?

SaaS in the Real World: Who's Responsible to Secure this Data?

Feb 06, 2023 SaaS Security / SSPM Solution
When SaaS applications started growing in popularity, it was unclear who was responsible for securing the data. Today, most security and IT teams understand the shared responsibility model, in which the SaaS vendor is responsible for securing the application, while the organization is responsible for securing their data.  What's far murkier, however, is where the data responsibility lies on the organization's side. For large organizations, this is a particularly challenging question. They store terabytes of customer data, employee data, financial data, strategic data, and other sensitive data records online.  SaaS data breaches and SaaS ransomware attacks can lead to the loss or public exposure of that data. Depending on the industry, some businesses could face stiff regulatory penalties for data breaches on top of the negative PR and loss of faith these breaches bring with them.  Finding the right security model is the first step before deploying any type of SSPM or other SaaS sec
OpenSSH Releases Patch for New Pre-Auth Double Free Vulnerability

OpenSSH Releases Patch for New Pre-Auth Double Free Vulnerability

Feb 06, 2023 Authentication / Vulnerability
The maintainers of OpenSSH have released OpenSSH 9.2 to address a number of security bugs, including a memory safety vulnerability in the OpenSSH server (sshd). Tracked as  CVE-2023-25136 , the shortcoming has been classified as a pre-authentication double free vulnerability that was introduced in version 9.1. "This is not believed to be exploitable, and it occurs in the unprivileged pre-auth process that is subject to chroot(2) and is further sandboxed on most major platforms," OpenSSH disclosed in its  release notes  on February 2, 2023. Credited with  reporting  the flaw to OpenSSH in July 2022 is security researcher Mantas Mikulenas. OpenSSH is the open source implementation of the secure shell ( SSH ) protocol that offers a suite of services for encrypted communications over an unsecured network in a client-server architecture. "The exposure occurs in the chunk of memory freed twice, the 'options.kex_algorithms,'" Saeed Abbasi, manager of vulnera
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