Security Affairs

JANUARY 10, 2025

A version discovered by Check Point in September relied on Apple’s XProtect encryption algorithm for obfuscation, allowing it to evade antivirus detection until its source code leak in November. The malicious code was advertised on cybercrime forums for $3,000 per month.

Malware 128

Malware Advertising Antivirus Cybercrime 128

Security Affairs

MAY 25, 2020

Ransomware encrypts from virtual machines to evade antivirus. Ragnar Locker deploys Windows XP virtual machines to encrypt victim’s files, the trick allows to evaded detection from security software. Mounting all the shared drives to encrypt. Custom Ragnar Locker ransom note (Source: Sophos).

Encryption 141

Encryption Ransomware Energy and Utilities Advertising 141

Security Affairs

FEBRUARY 16, 2021

Latin American Javali trojan weaponizing Avira antivirus legitimate injector to implant malware. After that, the following files are extracted, namely: Avira.exe : Legitimate injector from Avira Antivirus. In the last few years, many banking trojans developed by Latin American criminals have increased in volume and sophistication.

Antivirus 139

Antivirus Malware Banking Internet 139

Security Affairs

OCTOBER 20, 2024

CISA adds Fortinet products and Ivanti CSA bugs to its Known Exploited Vulnerabilities catalog Nation-state actor exploited three Ivanti CSA zero-days Dutch police dismantled dual dark web market ‘Bohemia/Cannabia’ macOS HM Surf flaw in TCC allows bypass Safari privacy settings Iran-linked actors target critical infrastructure organizations (..)

Data breaches 125

Data breaches Cybercrime Cyber Insurance Marketing 125

Security Affairs

MARCH 31, 2025

The PowerShell code avoids antivirus detection by using Get-Command to execute the payload. This DLL acts as a loader, decrypting and executing the final Remcos payload from encrypted files within the ZIP.

Phishing 119

Phishing Antivirus Encryption Hacking 119

Security Affairs

FEBRUARY 28, 2025

In August 2024, several users reported that Dr.Web antivirus detected changes in their TV box system files. Users may also mistakenly believe TV boxes are more secure than smartphones and are less likely to install antivirus software, increasing their risk when downloading third-party apps or unofficial firmware.

Antivirus 71

Antivirus Firmware Encryption Manufacturing 71

Security Affairs

DECEMBER 7, 2024

The spyware allowed Russian authorities to track a target device’s location, record phone calls, and keystrokes, and read messages from encrypted messaging apps. Kirill Parubets and his spouse were detained, during which the FSB pressured him to become an informant, threatening life imprisonment if he refused.

Spyware 132

Spyware Passwords Encryption Surveillance 132

Security Affairs

MARCH 10, 2025

The discovered infected archives contained an additional executable, with a modified start script tricking victims into disabling antivirus protections. Its configuration is Base64-encoded and encrypted with AES-CBC. By December 2024, reports emerged of further miner-infected versions spreading via Telegram and YouTube.

Cryptocurrency 94

Cryptocurrency Malware Social Engineering Antivirus 94

Security Affairs

MARCH 7, 2025

“Like the majority of ransomware operators, Spearwing and its affiliates carry out double extortion attacks, stealing victims’ data before encrypting networks in order to increase the pressure on victims to pay a ransom,” reads the report published by Symantec.

Ransomware 68

Ransomware Antivirus Healthcare Encryption 68

Security Affairs

NOVEMBER 24, 2024

Android Malware Detection Based on Behavioral-Level Features with Graph Convolutional Networks.

Malware 68

Malware Spyware Antivirus VPN 68

Security Affairs

APRIL 29, 2023

xyz pic.twitter.com/VLhISark8Y — Goldwave (@OGoldwave) March 13, 2023 The variant employed in the campaign supports a more sophisticated encryption method of byte remapping and a monthly rotation of the C2 server. ViperSoftX also checks for active antivirus products running on the machine. c2 arrowlchat[.]com

Encryption 98

Encryption Malware Cryptocurrency Software 98

Security Affairs

MARCH 31, 2025

“The main module implements numerous techniques to evade detection by antivirus (AV) and Endpoint Detection and Response (EDRs) including call stack spoofing, sleep obfuscation, and leveraging Windows fibers.” For sleep obfuscation, CoffeeLoader encrypts its memory while inactive, decrypting only during execution.

Malware 87

Malware Encryption Antivirus Marketing 87

Security Boulevard

FEBRUARY 11, 2022

Under-resourced Information Security Managers were not performing their business as usual role (including a NIST-based cybersecurity review of systems) but were working on evaluating security controls for the COVID-19 vaccination system. The antivirus server was later encrypted in the attack).

Hacking 98

Hacking Antivirus CISO Ransomware 98

Security Affairs

JULY 15, 2024

An attacker can exploit the issue to obtain encrypted credentials stored in the configuration database, potentially leading to gaining access to the backup infrastructure hosts. Once data exfiltration was completed, the attackers deployed ransomware to encrypt the infected systems. The vulnerability CVE-2023-275327 (CVSS score of 7.5)

Backups 143

Backups Ransomware Antivirus DNS 143

The Last Watchdog

JUNE 21, 2020

Although most people think of ransomware as a dodgy application that encrypts data and holds it for ransom, the concept is much more heterogeneous than that. File encryption 2013 – 2015. It emerged in September 2013 and paved the way for hundreds of file-encrypting menaces that have splashed onto the scene ever since.

Ransomware 243

Ransomware Hacking Encryption Penetration Testing 243

Security Affairs

DECEMBER 19, 2022

. “The actors customized previous ransomware binaries for the intended victim through the use of confidential information such as leaked accounts and unique company IDs as the appended file extension. Upon further analysis, we have learned that these flags are used for intermittent encryption.” ” concludes the report.

Ransomware 144

Ransomware Encryption Healthcare Education 144

Security Affairs

APRIL 21, 2024

The Akira ransomware operators implement a double extortion model by exfiltrating victims’ data before encrypting it. Earlier versions of the ransomware were written in C++ and the malware added the.akira extension to the encrypted files. “Akira threat actors utilize a sophisticated hybrid encryption scheme to lock data.

Ransomware 143

Ransomware Encryption Antivirus Architecture 143

Security Affairs

JANUARY 30, 2024

Kroll researchers reported that the ransomware strain outstands for the use of encryption to protect the ransomware binary. Once the malware has escalated the privileges on a machine, the threat actors use a batch script to uninstall popular antivirus solutions installed on the machine.

Ransomware 143

Ransomware Hacking Data breaches Digital transformation 143

Security Affairs

MAY 4, 2022

The security researcher John Page aka ( hyp3rlinx ) discovered that malware from multiple ransomware operations, including Conti , REvil , LockBit , AvosLocker , and Black Basta, are affected by flaws that could be exploited block file encryption. “Conti looks for and executes DLLs in its current directory.

Ransomware 123

Ransomware Antivirus Malware Encryption 123

Security Affairs

MARCH 17, 2021

According to the experts, the first infections were observed in late 2019, victims reported their files were encrypted by a strain of malware. locked to the filename of the encrypted files. The attackers implement a double extortion model using the PYSA ransomware to exfiltrate data from victims prior to encrypting their files.

Education 130

Education Ransomware Encryption Antivirus 130

Security Affairs

JULY 8, 2022

The security firm states that the AstraLocker decryptor works for ransomware versions based on the Babuk malware that appends the.Astra or.babyk extensions to the name of the encrypted files. “Be sure to quarantine the malware from your system first, or it may repeatedly lock your system or encrypt files.

Ransomware 142

Ransomware Encryption Malware Accountability 142

Security Affairs

JULY 1, 2019

Even if the activity of Dridex decreased in the last couple of years, crooks continued to updates it adding new features such the support of XML scripts, hashing algorithms, peer-to-peer encryption, and peer-to-command-and-control encryption. ” reads the analysis published by eSentire. com domain to download the Dridex installer.

Banking 108

Banking Antivirus Advertising Encryption 108

Security Affairs

FEBRUARY 19, 2024

[link] pic.twitter.com/z91nfnGYAQ — Dominic Alvieri (@AlvieriD) February 19, 2024 The Cactus ransomware operation has been active since March 2023, Kroll researchers reported that the ransomware strain is notable for the use of encryption to protect the ransomware binary.

Ransomware 142

Ransomware Digital transformation Retail Antivirus 142

Security Affairs

APRIL 7, 2021

This ransomware encrypts data from victims with AES-256 + RSA-8192 and then demands a ~ 2 BTC ransom to get the files back. At least in one case, an attack of the ransomware resulted in a temporary shutdown of the industrial process due to servers used to control the industrial process becoming encrypted.”

VPN 136

VPN Ransomware Antivirus Firmware 136

Security Affairs

JANUARY 16, 2023

Antivirus firm Avast released a free decryptor for the BianLian ransomware family that allows victims to recover locked files. Security firm Avast has released a free decryptor for the BianLian ransomware to allow victims of the malware to recover locked files. It is also recommendable to check the virus vault of your antivirus.

Ransomware 98

Ransomware Malware Encryption Antivirus 98

Security Affairs

SEPTEMBER 20, 2020

Once gained the foothold in the target network, the attackers will attempt lateral movements to elevate the privileges and search for high-value machines to encrypt (i.e. backup servers, network shares, servers, auditing devices). PowerShell) to easily deploy tooling or ransomware.

Education 145

Education Ransomware Antivirus Backups 145

Security Affairs

MAY 11, 2021

The ACSC also provided the following recommendations: Patch operating systems and applications, and keep antivirus signatures up to date. Maintain offline, encrypted backups of data and regularly test your backups. Regularly conduct backup procedures and keep backups offline or in separated networks.

Ransomware 142

Ransomware Backups Antivirus DDOS 142

Security Affairs

AUGUST 26, 2019

The name of the ransomware comes after the extension it adds to the encrypted file names, the malicious code also deletes their shadow copies to make in impossible any recovery procedure. Below the ransom note dropped by the Nemty ransomware after the encryption process is completed. ” continues BleepingComputer.

Ransomware 111

Ransomware Malware Antivirus Encryption 111

Security Affairs

MARCH 19, 2022

The AvosLocker ransomware-as-a-service emerged in the threat landscape in September 2021, since January the group expanded its targets by implementing the support for encrypting Linux systems, specifically VMware ESXi servers. Install and regularly update antivirus software on all hosts, and enable real time detection.

Ransomware 127

Ransomware DDOS Passwords Backups 127

Security Affairs

MARCH 19, 2020

” According to the experts, the first infections were observed in late 2019, victims reported their files were encrypted by a strain of malware. locked to the filename of the encrypted files. “On one of the compromised information systems, experts found encrypted files with the extension “ newversion.”

Government 144

Government Ransomware Encryption Penetration Testing 144

Security Affairs

JANUARY 6, 2023

Antivirus firm Bitdefender released a decryptor for the MegaCortex ransomware allowing its victims to restore their data for free. Antivirus firm Bitdefender released a decryptor for the MegaCortex ransomware , which can allow victims of the group to restore their data for free. RTF”, etc).

Ransomware 98

Ransomware Antivirus Encryption Backups 98

Security Affairs

MARCH 21, 2019

Note that ransomware is probably detected during antivirus behavioral analysis — heuristic and signature-based detection are easily passed. Another interesting thing is that the ransomware sample launches itself with the -w argument and also spawned a new process for each file it encrypted. locker ” is appended. Let’s look.

Ransomware 111

Ransomware Encryption Malware Antivirus 111

eSecurity Planet

JUNE 7, 2022

Protect your company computers, laptops and mobile devices with security products all managed via a cloud-based management console. The solution includes cloud sandboxing technology, preventing zero-day threats, and full disk encryption capability for enhanced data protection. Improved Data Security. Get started today!

Cybersecurity 127

Cybersecurity Identity Theft Encryption Antivirus 127

Security Affairs

MARCH 3, 2023

“FBI and CISA believe this variant, which uses its own custom-made file encryption program, evolved from earlier iterations that used “Zeon” as a loader.” The Royal ransomware can either fully or partially encrypt a file depending on its size and the ‘-ep’ parameter. ” reads the alert. ” continues the alert.

Ransomware 98

Ransomware Healthcare Encryption Antivirus 98

Security Affairs

MAY 22, 2024

“On September 30, 2023, OVT became aware of a security incident that resulted in the encryption of certain OVT systems by an unauthorized third party. Once the malware has escalated the privileges on a machine, the threat actors use a batch script to uninstall popular antivirus solutions installed on the machine.

Data breaches 139

Data breaches Ransomware Manufacturing Encryption 139

Security Affairs

JANUARY 8, 2021

Upon executing the code, it will ask the user the path for the payload to be encrypted and the password to be used for AES encryption to hide the malware within the loader. “The authors use the open source tool Ezuri, to load its previously seen payloads and avoid antivirus detections on the file.”

Malware 145

Malware Encryption Passwords Antivirus 145

Security Affairs

JANUARY 31, 2020

Ryuk infects computers by encrypting all local and shared files, not allowing the user’s access without paying the ransom. It was also possible to conclude that Emotet was the most widespread Malware worldwide and it has been enhanced with new capabilities that include the Ryuk Ransomware. DOWNLOAD FULL REPORT.

Malware 144

Malware Advertising Retail Antivirus 144