SecureList

APRIL 18, 2022

Kaspersky experts have found a vulnerability in the Yanluowang encryption algorithm and created a free decryptor to help victims of this ransomware with recovering their files. Geography of the Yanluowang attacks, December 4th, 2021 – April 8th, 2022 ( download ). The encryption code for big files. Yanluowang description.

Encryption 119

Encryption Ransomware Backups VPN 119

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 is back, doesn't look like much has changed. c2 arrowlchat[.]com ” continues the report.

Encryption 85

Encryption Malware Cryptocurrency Software 85

Security Affairs

FEBRUARY 6, 2023

Royal Ransomware operators added support for encrypting Linux devices and target VMware ESXi virtual machines. The Royal Ransomware gang is the latest extortion group in order of time to add support for encrypting Linux devices and target VMware ESXi virtual machines. The malware changes the extension of the encrypted files to ‘.royal’.

Encryption 95

Encryption Ransomware Malware Healthcare 95

Security Affairs

DECEMBER 1, 2023

“If we download the archive and unzip it, we find it contains files (prefixed with “TurtleRansom”) that appear to be compiled for common platforms, including, Windows, Linux, and yes, macOS” reads the analysis published by Wardle. The malware adds the extension “ TURTLERANSv0 ” to the filenames of encrypted files.

Ransomware 123

Ransomware Encryption Malware Cybercrime 123

Security Boulevard

MAY 13, 2022

Types of Encryption Algorithms. How Do Encryption Algorithms Work? Encryption algorithms are mathematical formulas that transform plaintext into ciphertext. Put simply, algorithms make encrypting and decrypting code possible, specifically between the correct users. Types of Encryption. Symmetric Encryption.

Encryption 52

Encryption Computers and Electronics Internet Internet 52

Security Affairs

APRIL 30, 2021

UNC2447 cybercrime gang exploited a zero-day in the Secure Mobile Access (SMA), addressed by SonicWall earlier this year, before the vendor released a fix. Sombrat is written in modern C++ implements a modular structure through a set of plugins that are downloaded from the C2. Follow me on Twitter: @securityaffairs and Facebook.

Cybercrime 102

Cybercrime Ransomware Malware Mobile 102

Security Affairs

APRIL 17, 2024

The attackers use the web shell to download and run the primary Cerber payload. As such, the data the ransomware is able to encrypt is limited to files owned by the confluence user. It will of course succeed in encrypting the datastore for the Confluence application, which can store important information.”

Ransomware 130

Ransomware Encryption Malware Accountability 130

SecureList

OCTOBER 20, 2021

Having been in the field for so long, we have witnessed some major changes in the cybercrime world’s modus operandi. This report shares our insights into the Russian-speaking cybercrime world and the changes in how it operates that have happened in the past five years. Conclusion: cybersecurity and cybercrime have matured.

Cybercrime 140

Cybercrime Banking Malware Ransomware 140

Krebs on Security

JANUARY 30, 2024

Among those was the encrypted messaging app Signal , which said the breach could have let attackers re-register the phone number on another device for about 1,900 users. LastPass said criminal hackers had stolen encrypted copies of some password vaults, as well as other personal information. On July 28 and again on Aug.

Social Engineering 327

Social Engineering Mobile Cybercrime Passwords 327

Security Affairs

NOVEMBER 13, 2021

Threat actors are distributing the GravityRAT remote access trojan masqueraded as an end-to-end encrypted chat application named SoSafe Chat. Threat actors are distributing the GravityRAT RAT masqueraded as an end-to-end encrypted chat application named SoSafe Chat. in) used by the attackers. Pierluigi Paganini.

Encryption 126

Encryption Malware Media Authentication 126

Krebs on Security

JANUARY 27, 2021

and Bulgarian authorities this week seized the darkweb site used by the NetWalker ransomware cybercrime group to publish data stolen from its victims. million last summer in exchange for a digital key needed to unlock files encrypted by the ransomware. The files encrypted with it cannot be decrypted. Powershell build.

Ransomware 290

Ransomware Cybercrime Antivirus Encryption 290

SecureList

JUNE 22, 2023

KTAE shows similarities between LockBit Green and Conti Three pieces of adopted code really stand out: the ransomware note, the command line options and the encryption scheme. The group now usesa custom ChaCha8 implementation to encrypt files with a randomly generated key and nonce that are saved/encrypted with a hard-coded public RSA key.

Phishing 116

Phishing Encryption Cybercrime Ransomware 116

Malwarebytes

FEBRUARY 6, 2024

Big game attacks extort vast ransoms from organizations by holding their data hostage—either with encryption, the threat of damaging data leaks, or both. And like broader, law-abiding “Business” at large, cybercrime has settled on a collection of tools that work. READ THE REPORT

Ransomware 105

Ransomware Cybercrime Malware Social Engineering 105

Thales Cloud Protection & Licensing

NOVEMBER 13, 2023

The Alarming Reality of Fraud Fraud and cybercrime are pressing challenges for all sectors, including financial services. Fraud and cybercrime account for over 40% of all estimated crimes in England and Wales and affects more people more often than any other crime. billion annually.

Financial Services 105

Financial Services Encryption Cybercrime Threat Reports 105

Security Affairs

DECEMBER 14, 2021

The attackers exploited the Log4Shell remote code execution vulnerability to download a.NET binary from a remote server that encrypts the files on the target machine and adds the extension.khonsari to each file. NOT MODIFY OR DELETE THIS FILE OR ANY ENCRYPTED FILES. IF YOU DO, YOUR FILES MAY BE UNRECOVERABLE.

Ransomware 141

Ransomware Encryption Engineering Malware 141

Krebs on Security

JUNE 16, 2021

First debuting in early 2019, CLOP is one of several ransomware groups that hack into organizations, launch ransomware that encrypts files and servers, and then demand an extortion payment in return for a digital key needed to unlock access. ? /. CLOP’s victim shaming blog on the deep web.

Ransomware 329

Ransomware Cybercrime Malware Encryption 329

Security Affairs

JUNE 6, 2023

The Cyclops group is advertising the ransomware on multiple cybercrime forums, the gang requests a share of profits from those using its malware in financially motivated attacks. “After encryption in both Windows and Linux using the public key, CRC32 and a file marker are appended to the end of the file. .”

Ransomware 70

Ransomware Encryption Cybercrime Malware 70

Krebs on Security

MARCH 28, 2021

“web shells”) that various cybercrime groups worldwide have been using to commandeer any unpatched Exchange servers. Watson said the Krebsonsecurity file will attempt to open up an encrypted connection between the Exchange server and the above-mentioned IP address, and send a small amount of traffic to it each minute.

Hacking 357

Hacking Cybercrime DNS Antivirus 357

Security Affairs

FEBRUARY 24, 2020

“In addition, the attacker panel has been improved, some UI issues were fixed and the authors added an option to encrypt the builds right from the panel and downloaded it as a DLL.” The post Raccoon Malware, a success case in the cybercrime ecosystem appeared first on Security Affairs. Pierluigi Paganini.

Cybercrime 87

Cybercrime Malware Cryptocurrency Advertising 87

SecureList

JANUARY 30, 2023

Just as any other business, cybercrime needs labor. Cybercrooks need a staff of professionals with specific skills to penetrate the infrastructure of an organization, steal confidential data, or encrypt the system for subsequent extortion. Offers like that come from hacker groups, among others.

Cybercrime 119

Cybercrime Marketing Encryption Risk 119

Security Affairs

SEPTEMBER 9, 2023

The cybercrime group claims to have stolen 1 TB of data from the hospital and threatens to leak it. The message published by the gang on its leak site emphasizes that they didn’t encrypt data to avoid causing malfunctions to the hospital’s medical equipment.

Ransomware 112

Ransomware Financial Services Cybercrime Encryption 112

Krebs on Security

FEBRUARY 2, 2021

ValidCC , a dark web bazaar run by a cybercrime group that for more than six years hacked online merchants and sold stolen payment card data, abruptly closed up shop last week. Group-IB believes UltraRank is responsible for a slew of hacks that other security firms previously attributed to at least three distinct cybercrime groups.

Cybercrime 216

Cybercrime Media Accountability Hacking 216

Webroot

SEPTEMBER 7, 2023

Cybercrime is on the rise. billion to data breaches and cybercrime. billion to data breaches and cybercrime. Email encryption Companies rely on email to distribute important information, but when that information is confidential and sensitive, you need an encryption tool to protect it.

Encryption 88

Encryption Cyber Insurance Cybercrime Phishing 88

Security Affairs

APRIL 14, 2023

The threat actors also attempted to sell the stolen data on the BreachForums cybercrime forum that was recently shut down by law enforcement. The account was used to create database backups which were then downloaded and deleted. It also downloaded existing nightly full-backups of the database.

Data breaches 90

Data breaches Backups Passwords Accountability 90

Security Affairs

APRIL 23, 2022

The malicious code will download, create on disk and run the malicious DLL “pe.dll” The last stage malware installed on the infected systems is a Cobalt Strike Beacon that allows attackers to take over them. The alert published by the Ukraine CERT-UA includes Indicators of Compromise (IoCs) for this campaign and recommendations.

Phishing 84

Phishing Cybercrime Ransomware Encryption 84

Security Affairs

NOVEMBER 5, 2021

The attack chain starts with a downloader module on a victim’s server in the form of a standalone executable format and a DLL. The DLL downloader is run by the Exchange IIS worker process w3wp.exe. Attackers used a modified EfsPotato exploit to target proxyshell and PetitPotam flaws as an initial downloader.

Ransomware 122

Ransomware Backups Encryption DNS 122

Security Affairs

OCTOBER 26, 2019

Even though encryption should be taken seriously by businesses of all sizes, only a small fraction of the corporate sector puts their back on it. According to Juniper Research , up to 13% of the cybercrime market thrives because of the small business. Why is Encryption a Feasible Option against Digital Threats?

Encryption 45

Encryption Ransomware Cyber threats Cybercrime 45

Security Affairs

MAY 15, 2023

Once encrypted the victims files RA Group, the gang drops customized ransom notes (“How To Restore Your Files.txt.”), which include the victim’s name and a unique link to download the exfiltration proofs. The ransomware supports intermittent encryption to speed up the encryption process. ” continues the report.

Ransomware 82

Ransomware Encryption Cybercrime Insurance 82

Security Affairs

JULY 1, 2023

“During the run, the ransomware generates a symmetric encryption key using CryptGenRandom() , which is the random number generator implemented by Windows CryptoAPI. . Files are encrypted by Chacha 2008 ( D. “The symmetric key is encrypted by the RSA-4096 cipher and appended to the end of the encrypted file.

Ransomware 98

Ransomware Encryption Malware Hacking 98

Security Affairs

JANUARY 5, 2020

DeathRansom was considered fake ransomware due to the fact that it did not implement an effective encryption process, but now things are changing. DeathRansom is a ransomware family that was initially classified as a joke because it did not implement an effective encryption scheme. They share the naming pattern and infrastructure used.

Encryption 62

Encryption Ransomware Malware Scams 62

Security Affairs

AUGUST 10, 2023

The user inadvertently downloads the Initial Sample file. To facilitate the download of the Statc payload through a PowerShell script, the Initial Sample file also drops and executes a Downloader Binary file. From here, Statc Stealer calls on its C&C server to deliver the stolen encrypted data.

Malware 84

Malware Encryption Advertising Cryptocurrency 84

Security Affairs

APRIL 13, 2024

On April 3rd, the attacker updated the code in one of their repositories, linking to a new URL that downloads a different encrypted.7z By exploiting GitHub’s search functionality and manipulating repository properties, attackers can lure unsuspecting users into downloading and executing malicious code.”

Malware 116

Malware Cryptocurrency Encryption Hacking 116

Security Affairs

MARCH 19, 2022

In July, researchers from Fortinet first spotted the new ransomware family, tracked as Diavol, and speculated it might have been developed by Wizard Spider , the cybercrime gang behind the TrickBot botnet. The free decryptor for the Diavol ransomware released by Emsisoft can be downloaded here , the company also released a guide for the tool.

Ransomware 85

Ransomware Encryption Banking Malware 85

Security Affairs

JULY 5, 2023

Once inside the system, this malicious variant stealthily extracts sensitive information and proceeds to encrypt the compromised files.” The downloaded file is an executable file known as RedStealer. org/assets/programs/setupbrowser.exe ) which downloads the file setupbrowser.exe. igrejaatos2[.]org/assets/programs/setupbrowser.exe

Energy and Utilities 81

Energy and Utilities Ransomware Backups Malware 81

Hacker Combat

JUNE 1, 2021

In the last decade, cybercrime has become more sophisticated. Most individuals are not very keen on cybercrime and assume only corporates and businesses are targets. Ransomware is a form of malware that encrypts your sensitive data, meaning you cannot access your computer or the data. An app that encrypts and decrypts data.

Ransomware 82

Ransomware Encryption VPN Cybercrime 82

Security Boulevard

DECEMBER 30, 2021

Banking trojans have a significant role in the cybercrime scene in Latin America. For example, the same or similar custom encryption schemes are used by these malware families. Krachulka Banking Malware.DLL File Download Variant-1. Krachulka Banking Malware.DLL File Download Variant-2.

Banking 111

Banking Malware Spyware Phishing 111

SecureList

DECEMBER 13, 2023

Clicking the notification downloads a malicious file to the device. Over the course of time, the attackers have changed the download URL to stay undetected longer. Landing page example The download is a JS file that contains obfuscated code. For an example, look at the image below.

Ransomware 97

Ransomware Passwords Malware Encryption 97