RagnarLocker ransomware gang breached 52 critical infrastructure organizations

In a FLASH publication issued by the FBI in coordination with DHS/CISA, the FBI says it has identified at least 52 organizations across 10 critical infrastructure sectors affected by RagnarLocker ransomware, including organizations in the critical manufacturing, energy, financial services,...

The Chaos Ransomware Can Be Ravaging

The Qualys Research Team has observed a new version of Chaos ransomware in development. This blog reviews the malware’s updated functionality as well as its ongoing evolution. A ransomware builder called Chaos is still actively under development. The fourth version has recently been observed bein...

LockFile Ransomware Bypasses Protection Using Intermittent File Encryption

A new ransomware family that emerged last month comes with its own bag of tricks to bypass ransomware protection by leveraging a novel technique called "intermittent encryption." Called LockFile, the operators of the ransomware have been found exploiting recently disclosed flaws such as ProxyShel...

CVE-2021-22932

An issue has been identified in the CTX269106 mitigation tool for Citrix ShareFile storage zones controller which causes the ShareFile file encryption option to become disabled if it had previously been enabled. Customers are only affected by this issue if they previously selected “Enable...

CVE-2021-22932

CVE-2021-22932 affects Citrix ShareFile storage zones controller via the CTX269106 mitigation tool, which can disable the encryption option if it had been enabled. Affected users who previously selected “Enable Encryption” and did not re-select after running CTX269106 may see encryption disabled;...

CVE-2021-22932: Missing Encryption of Sensitive Data

An issue has been identified in the CTX269106 mitigation tool for Citrix ShareFile storage zones controller which causes the ShareFile file encryption option to become disabled if it had previously been enabled. Customers are only affected by this issue if they previously selected “Enable...

Chaos Malware: Ransomware and Wiper

An under-construction malware called Chaos has been spotted, which is being advertised on an underground forum as being available for testing. While it calls itself ransomware, an analysis revealed that it’s actually more of a wiper. According to Trend Micro researcher Monte de Jesus, Chaos has...

Citrix ShareFile storage zones controller security update

Anissuehasbeen identified intheCTX269106mitigation toolforCitrix ShareFilestorage zones controllerwhichcausestheShareFilefile encryptionoptiontobecomedisabledifit hadpreviouslybeenenabled. Customers areonlyaffected by this issue if theypreviouslyselected “Enable Encryption”in the ShareFilestorage...

Baphomet - Basic Concept Of How A Ransomware Works

This is a proof of concept of how a ransomware works, and some techniques that we usually use to hijack our files. This project is written in C using the net-core application framework 3.1.The main idea of the code is to make it as readable as possible so that people have an idea of how this type...

Design/Logic Flaw

An issue was discovered in Aviatrix Controller before R5.3.1151. An encrypted file containing credentials to unrelated systems is protected by a three-character key...

CVE-2020-28638: Improper Authentication

askpassword in Tomb 2.0 through 2.7 returns a warning when pinentry-curses is used and $DISPLAY is non-empty, causing affected users' files to be encrypted with "tomb W Detected DISPLAY, but only pinentry-curses is found." as the encryption key...

RansomEXX Trojan attacks Linux systems

We recently discovered a new file-encrypting Trojan built as an ELF executable and intended to encrypt data on machines controlled by Linux-based operating systems. After the initial analysis we noticed similarities in the code of the Trojan, the text of the ransom notes and the general approach ...

ASB-A-153450752

In various functions in fscryptice.c and related files in some implementations of f2fs encryption that use encryption hardware which only supports 32-bit IVs Initialization Vectors, 64-bit IVs are used and later are truncated to 32 bits. This may cause IV reuse and thus weakened disk encryption...

Principles of a Cloud Migration – Security, The W5H – Episode WHAT?

Teaching you to be a Natural Born Pillar! Last week, we took you through the “WHO” of securing a cloud migration here, detailing each of the roles involved with implementing a successful security practice during a cloud migration. Read: everyone. This week, I will be touching on the “WHAT” of...

CVE-2020-1740

A flaw was found in Ansible Engine when using Ansible Vault for editing encrypted files. When a user executes "ansible-vault edit", another user on the same computer can read the old and new secret, as it is created in a temporary file with mkstemp and the returned file descriptor is closed and t...

Variant of Paradise Ransomware Targets Office IQY Files

A new variant of the Paradise ransomware attacks rarely-targeted Microsoft Office Excel IQY files, providing a new and relatively inobtrusive way to infiltrate and hijack an organization’s network, researchers have found. Lastline Labs’ James Haughom discovered the variant in December in a spam...

Moxa EDS-G516E and EDS-510E Series Ethernet Switches

1. EXECUTIVE SUMMARY CVSS v3 9.8 ATTENTION: Exploitable remotely/low skill level to exploit Vendor: Moxa Equipment: EDS-G516E series, and EDS-510E series Vulnerabilities: Stack-based Buffer Overflow, Use of a Broken or Risky Cryptographic Algorithm, Use of Hard-coded Cryptographic Key, Use of...

Threat Analysis Unit (TAU) Threat Intelligence Notification: SatanCryptor Ransomware

In early January 2020, a new ransomware named ‘SatanCryptor’ was discovered. After it performs file encryption, it will drop a ransom note named “ SATAN CRYPTOR .hta” and append ‘.satan’ as a file extension to the encrypted files. In addition, SatanCryptor will delete itself after the execution t...

CB TAU Threat Intelligence Notification: Nemty Ransomware

While Nemty Ransomware is distributed by various exploit kits, its behavior is similar to other variants of ransomware. It will perform “task kill” on processes to ensure the encryption of files such as databases SQL server, perform the deletion of volume shadow copies, and disable Windows...

McAfee ATR Analyzes Sodinokibi aka REvil Ransomware-as-a-Service - What The Code Tells Us

McAfee ATR Analyzes Sodinokibi aka REvil Ransomware-as-a-Service – What The Code Tells Us By McAfee Labs · October 2, 2019 Episode 1: What the Code Tells Us McAfee’s Advanced Threat Research team ATR observed a new ransomware family in the wild, dubbed Sodinokibi or REvil, at the end of April 201...