Malwarebytes

OCTOBER 28, 2021

All encrypted files have extension: ranzy - How to restore my files? - Some variants also use file extensions for the encrypted files that show Ranzy Locker was at work. Find and delete shadow volume copies, and other recent backups, and disable the Windows recovery environment. Ranzy Locker 1.1. Your network has been locked.

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eSecurity Planet

JULY 8, 2022

“With a cyberattack, it’s more than just data that needs protecting—at risk is really the entire physical infrastructure from applications and operating systems down to low-level firmware and BIOS. This type of backup and DR technology offers RPOs measured in hours. See the Best Backup Solutions for Ransomware Protection.

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Backups Ransomware Technology Marketing 142

Malwarebytes

JULY 10, 2022

North Korean state-sponsored cyber-actors used Maui ransomware in these incidents to encrypt servers responsible for healthcare services—including electronic health records services, diagnostics services, imaging services, and intranet services. Keep operating systems, applications, and firmware up to date.

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Healthcare Ransomware Encryption Firmware 87

Security Affairs

MARCH 26, 2021

The Federal Bureau of Investigation (FBI) issued an alert to warn that the Mamba ransomware is abusing the DiskCryptor open source tool to encrypt entire drives. Mamba ransomware is one of the first malware that encrypted hard drives rather than files that was detected in public attacks. ” reads the alert published by the FBI.

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Ransomware Encryption Passwords Malware 143

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. Regularly back up data, password protect backup copies offline. Use multifactor authentication where possible.

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Malwarebytes

SEPTEMBER 7, 2022

Both use the.kitty or.crypted file extension for encrypted files. But you should also realize that while it’s easy to say that you need reliable and easy to deploy backups, for example, it’s not always easy to follow that advice. Maintain offline backups of data, and regularly maintain backup and restoration.

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Education Ransomware Backups Passwords 87

Security Affairs

APRIL 23, 2021

(QNAP), a leading computing, networking and storage solution innovator, today issued a statement in response to recent user reports and media coverage that two types of ransomware (Qlocker and eCh0raix) are targeting QNAP NAS and encrypting users’ data for ransom. ” read the advisory published by the vendor.

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Security Affairs

AUGUST 13, 2022

To each encrypted file, it appends a randomized nine-digit hexadecimal number as an extension. The US agencies recommend not paying the ransom because there is no guarantee to recover the encrypted files and paying the ransomware will encourage the illegal practice of extortion. ” reads the joint advisory. “The

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eSecurity Planet

OCTOBER 20, 2022

Its table illustration also goes into more detail and notes Google’s responsibility for hardware, boot, hardened kernel and interprocess communication (IPC), audit logging, network, and storage and encryption of data. Also read: Exfiltration Can Be Stopped With Data-in-Use Encryption, Company Says.

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Security Affairs

SEPTEMBER 3, 2021

“Cyber criminal threat actors exploit network vulnerabilities to exfiltrate data and encrypt systems in a sector that is increasingly reliant on smart technologies, industrial control systems, and internet-based automation systems. The good news is in the latter attack the victims restored its backups.

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Malwarebytes

JULY 20, 2022

According to court documents, in May 2021, North Korean hackers used a ransomware strain called Ransom.Maui to encrypt the files and servers of a medical center in the District of Kansas. Keep operating systems, applications, and firmware up to date. Require multi-factor authentication (MFA) for as many services as possible.

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Security Affairs

FEBRUARY 14, 2022

“BlackByte is a Ransomware as a Service (RaaS) group that encrypts files on compromised Windows host systems, including physical and virtual servers.” Once gained access to the network, threat actors deployed tools to perform lateral movements and escalate privileges before exfiltrating and encrypting files.

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eSecurity Planet

FEBRUARY 15, 2022

The ransomware encrypts files on compromised Windows host systems, including physical and virtual servers, the advisory noted, and the executable leaves a ransom note in all directories where encryption occurs, including ransom payment instructions for obtaining a decryption key. CISA Vulnerabilities Affect Apple, Oracle and Others.

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SecureWorld News

OCTOBER 8, 2023

Use the 3-2-1 backup rule. Additionally, be cautious when adding new friends; verify their authenticity through known offline connections. Use the administrator account only for maintenance, software installation, or firmware updates. Attention should be paid to protecting routers and updating their firmware.

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Firmware IoT Accountability Passwords 84

eSecurity Planet

JUNE 30, 2023

Lace Tempest (Storm-0950, overlaps w/ FIN11, TA505) authenticates as the user with the highest privileges to exfiltrate files,” Microsoft notes. Backup and Restoration: Keep offline backups of data and execute backup and restore on a regular basis. Patch operating systems, software, and firmware on a regular basis.

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eSecurity Planet

MARCH 22, 2023

Although beyond the scope of the network, effective network security relies upon the effective authentication of the user elsewhere in the security stack. Two-Factor Authentication (2FA) : In today’s ransomware-riddled environment, two-factor authentication should also be considered a minimum requirement for all forms of remote access.

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Firewall Network Security Penetration Testing Encryption 107

Security Affairs

OCTOBER 22, 2022

Below are the mitigations provided in the alert: Install updates for operating systems, software, and firmware as soon as they are released. Require phishing-resistant MFA for as many services as possible—particularly for webmail, VPNs, accounts that access critical systems, and privileged accounts that manage backups.

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Ransomware VPN Cybercrime Accountability 65

Malwarebytes

APRIL 11, 2022

Implement regular backups of all data to be stored as air-gapped, password-protected copies offline. Install updates/patch operating systems, software, and firmware as soon as updates/patches are released. Use double authentication when logging into accounts or services. Ransomware Attacks by Gang. Ransomware Attacks by Country.

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Security Boulevard

MAY 9, 2022

The ransomware targets virtual machines and snapshots, looking to escape containers, encrypt any possible persistence, and wipe out backups that weren’t carefully archived. Regularly back up data, air gap, and password protect backup copies offline. Use multifactor authentication where possible.

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Ransomware Antivirus Backups Passwords 98

Pen Test Partners

OCTOBER 9, 2023

There is no concrete method to follow as it will rely on contents of the decomposed design from Step 2, but typical examples might include the following: Intellectual property in the device firmware. Deploy malicious firmware. Use AES encryption. link] [link] Have a software/firmware update mechanism. Encrypt in transit.

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IoT Firmware Mobile Manufacturing 52

Thales Cloud Protection & Licensing

DECEMBER 12, 2019

Security best practices for encryption key storage, management and protection is critical to protecting valuable data wherever it is located, but implementing the security requirements needed by your organization as well as those of regulatory governing and audit bodies can be a challenge. The latest firmware version 7.3.3,

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Malwarebytes

MAY 6, 2022

At first, some suspected that Onyx may be a wiper rather than ransomware because it destroyed files larger than 2MB instead of encrypting them. Implement regular backups of all data to be stored as air-gapped, password-protected copies offline. Use double authentication when logging into accounts or services. Source: IC3.gov.

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Security Affairs

MAY 13, 2021

According to open-source reporting, since August 2020, DarkSide actors have been targeting multiple large, high-revenue organizations, resulting in the encryption and theft of sensitive data. Require multi-factor authentication for remote access to OT and IT networks. Implement regular data backup procedures .

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Ransomware Healthcare Phishing Risk 103

Malwarebytes

MAY 28, 2021

The files are then held for ransom and the victim is threatened by data loss, because of the encryption, and leaking of the exfiltrated data. Files are encrypted with a combination of AES-256 and RSA-4096 via the Microsoft CryptoAPI , as per CrowdStrike. Earlier versions appended the.CONTI extension to encrypted files.

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Healthcare Ransomware Encryption Passwords 107

Malwarebytes

MARCH 10, 2022

Implement regular backups of all data to be stored as air-gapped, password-protected copies offline. Install updates/patch operating systems, software, and firmware as soon as updates/patches are released. Use double authentication when logging into accounts or services. Mitigations. Source: IC3.gov.

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eSecurity Planet

MAY 19, 2022

The first traditional cybersecurity vendor featured is Barracuda Networks, with consistent recognition for its email security , next-generation firewalls ( NGFW ), web application security , and backups. Features: Barracuda CloudGen Firewall and Secure SD-WAN. Features: Cisco SD-WAN. Open Systems.

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eSecurity Planet

MAY 28, 2021

The truth is that solutions like single sign-on (SSO) and multi-factor authentication (MFA) can spell disaster if initial access is all a malicious actor needs to traverse the network’s resources. Ransomware: Encryption, Exfiltration, and Extortion. Prevent Rely solely on offline backups Disallow unnecessary file sharing.

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Security Affairs

OCTOBER 13, 2020

As an example, we could use communications between systems that are not properly encrypted. Improper encryption. Hackers or other malicious sources can intercept poorly encrypted communications on the web. If such processes lack proper authentication steps, they could work as gateways for bigger problems.

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IoT Cybersecurity Manufacturing Internet 129

Malwarebytes

JUNE 3, 2022

Implement regular backups of all data to be stored as air-gapped, password-protected copies offline. Install updates/patch operating systems, software, and firmware as soon as updates/patches are released. Use double authentication when logging into accounts or services. Known ransomware attacks by group, May 2022. Source: IC3.gov.

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Security Affairs

APRIL 2, 2021

. “The APT actors may be using any or all of these CVEs to gain access to networks across multiple critical infrastructure sectors to gain access to key networks as pre-positioning for follow-on data exfiltration or data encryption attacks,” continues the advisory. Use multifactor authentication where possible.

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Passwords Government Firmware Accountability 63

SecureList

JULY 28, 2022

We identified a Windows variant of this sample using the same string encryption algorithm, internal modules, and functionalities. In late 2021, we encountered a malicious DXE driver incorporated into several UEFI firmware images that were flagged by our firmware scanner (integrated into Kaspersky products at the start of 2019).

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SecureWorld News

OCTOBER 29, 2020

Once dropped, Ryuk uses AES-256 to encrypt files and an RSA public key to encrypt the AES key.". Patch operating systems, software, and firmware as soon as manufacturers release updates. Use multi-factor authentication where possible. The group also uses third-party tools, such as Bloodhound.

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Ransomware Healthcare Backups Cybercrime 61

Malwarebytes

FEBRUARY 1, 2023

And while approval is pending, a separate group creates offline backups of essential files that are needed in the event of an error and affected systems need restoring. Create and test offline backups Speaking of backups, never assume they work. Make multi-factor authentication (MFA) a norm.

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Software Risk Backups Technology 75

eSecurity Planet

MAY 2, 2024

Multi-factor authentication : Protects stolen credentials against use by requiring more than a simple username and password combination for access to resources. Passwordless authentication : Eliminates passwords in favor of other types of authentication such as passkeys, SSO, biometrics, or email access. 50% cloud targets.

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Cybersecurity DDOS Penetration Testing Passwords 119

eSecurity Planet

MARCH 23, 2022

The DazzleSpy backdoor software had interesting features to foil detection, including end-to-end encryption to avoid firewall inspection as well as a feature that cut off communication if a TLS-inspection proxy was detected. Implement multi-factor authentication (MFA). Deploy data encryption at rest and in transit.

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Firewall Malware Phishing Software 107

McAfee

AUGUST 24, 2021

CVE-2021-33885 – Insufficient Verification of Data Authenticity (CVSS 9.7). CVE-2021-33882 – Missing Authentication for Critical Function (CVSS 8.2). Lastly, the pump runs its own custom Real Time Operating System (RTOS) and firmware on a M32C microcontroller. Braun on January 11, 2021.

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Computers and Electronics Authentication Software Risk 145

Malwarebytes

JULY 13, 2022

To penetrate and encrypt as many systems as possible, some threat groups have started writing ransomware code using cross-platform programming languages like Python, Rust, or Golang. Automatic data backups to offsite and/or segmented servers will be key in keeping businesses operational in case of breach. Ransomware mitigations.

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