Krebs on Security

OCTOBER 8, 2020

There’s an old adage in information security: “Every company gets penetration tested, whether or not they pay someone for the pleasure.” ” Many organizations that do hire professionals to test their network security posture unfortunately tend to focus on fixing vulnerabilities hackers could use to break in.

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Cybercrime VPN Malware Ransomware 345

Security Affairs

OCTOBER 21, 2021

Evil Corp cybercrime gang is using a new ransomware called Macaw Locker to evade US sanctions that prevent victims from paying the ransom. The Macaw Locker ransomware encrypts victims’ files and append the .macaw macaw extension to the file name of the encrypted files. In 2019, the U.S.

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Security Affairs

JUNE 30, 2021

Law enforcement seized the servers and customer logs for DoubleVPN, a double-encryption service widely used by threat actors for malicious purposes. “International law enforcement continues to work collectively against facilitators of cybercrime, wherever and however it is committed. SecurityAffairs – hacking, cybercrime ).

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VPN Cybercrime Encryption Advertising 142

Security Affairs

MAY 29, 2023

Experts warn of phishing attacks that are combining the use of compromised Microsoft 365 accounts and.rpmsg encrypted emails. Trustwave researchers have observed threat actors using encrypted RPMSG attachments sent via compromised Microsoft 365 accounts in a phishing campaign aimed at stealing Microsoft credentials.

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Encryption Phishing Accountability Authentication 98

Security Affairs

SEPTEMBER 2, 2024

Since June, the operators behind Cicada3301 have started recruiting affiliates on the RAMP cybercrime forum. ui : Displays real-time progress and statistics of the encryption process, such as the number of files encrypted. The Cicada3301 ransomware generates a symmetric key for encryption using the OsRng random number generator.

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Krebs on Security

MARCH 1, 2022

A Ukrainian security researcher this week leaked several years of internal chat logs and other sensitive data tied to Conti , an aggressive and ruthless Russian cybercrime group that focuses on deploying its ransomware to companies with more than $100 million in annual revenue. It’s just some kind of sabotage.”

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Security Affairs

JULY 2, 2021

Wizard Spider, the cybercrime gang behind the TrickBot botnet, is believed to be the author of a new ransomware family dubbed Diavol, Fortinet researchers report. Researchers from Fortinet reported that a new ransomware family, tracked as Diavol, might have been developed by Wizard Spider , the cybercrime gang behind the TrickBot botnet.

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Security Affairs

MARCH 6, 2024

Researchers warn that the cybercrime groups GhostSec and Stormous have joined forces in a new ransomware campaign. The group is not linked to the hacktivist group Ghost Security Group, which primarily focuses on counterterrorism efforts and targets pro-ISIS websites. ransomware, a Golang variant of the GhostLocker ransomware.

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Security Affairs

DECEMBER 1, 2023

The Turtle ransomware reads files into memory, encrypt them with AES (in CTR mode), rename the files, then overwrites the original contents of the files with the encrypted data. The malware adds the extension “ TURTLERANSv0 ” to the filenames of encrypted files. The binary also lacks of obfuscation.

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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.

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Security Affairs

DECEMBER 18, 2023

Some info stealers may use encryption techniques to hide their communication with command-and-control servers, making it more challenging for security systems to detect malicious activities. Illegal activities : Accessing someone else’s bank account information without authorization is illegal and considered a form of cybercrime.

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Banking Cybercrime Malware Accountability 133

Krebs on Security

AUGUST 23, 2024

When Caturegli discovered an encryption certificate being actively used for the domain memrtcc.ad, the domain was still available for registration. But Caturegli said ransomware gangs and other cybercrime groups could siphon huge volumes of Microsoft Windows credentials from quite a few companies with just a small up-front investment.

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DNS Internet Internet Authentication 314

Security Affairs

SEPTEMBER 13, 2023

Before starting the encryption process, the ransomware attempts to stop multiple services. Once the encryption of the files is completed, it attempts to delete Volume Shadow (VSS) copies. The malware appends the extension.threeamtime to the filenames of encrypted files. 3AM is a brand new ransomware written in Rust.

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Krebs on Security

JULY 25, 2023

Proxy services can be used in a legitimate manner for several business purposes — such as price comparisons or sales intelligence — but they are massively abused for hiding cybercrime activity because they make it difficult to trace malicious traffic to its original source. SocksEscort began in 2009 as “ super-socks[.]com com , segate[.]org

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Malware VPN Internet Internet 231

Security Affairs

NOVEMBER 1, 2021

The HelloKitty ransomware group, like other ransomware gangs, implements a double extortion model, stealing sensitive documents from victims before encrypting them. SecurityAffairs – hacking, cybercrime). The post HelloKitty ransomware gang also targets victims with DDoS attacks appeared first on Security Affairs.

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Security Affairs

SEPTEMBER 27, 2021

Researchers from vpnMentor recently published a report that sheds the light on the use of Telegram in the cybercrime ecosystem. vpnMentor researchers joined several cybercrime-focused Telegram groups and discovered a vast network of more 1,000s individuals sharing data leaks and dumps and discussing how to exploit them in illegal activities.

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Hot for Security

APRIL 19, 2021

Notorious FIN7 gang stole payment card details from retailers around the world Cybercrime gang posed as penetration testing firm to recruit hackers. A key member of the FIN7 cybercrime gang – which is said to have caused over one billion dollars worth of damage around the world – has been sentenced to 10 years in jail.

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Penetration Testing Retail Cybersecurity Social Engineering 144

Security Affairs

SEPTEMBER 17, 2022

The cybersecurity firm Bitdefender has released a free decryptor to allow LockerGoga ransomware victims to recover their encrypted files without paying a ransom. ” reads the announcement published by the security firm. In order to decrypt the files, users have to provide the path containing pairs of clean-encrypted files.

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Ransomware Encryption Backups Cybercrime 137

Security Affairs

JULY 2, 2024

“The man, 42, is expected to appear in Perth Magistrates Court today (28 June, 2024) to face nine charges for alleged cybercrime offences.” These harvested cfedentials could be used to access victims’ personal information and bank details. ” AFP Western Command Cybercrime Detective Inspector Andrea Coleman said.

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Wireless Cybercrime Banking VPN 128

Security Affairs

MARCH 8, 2025

The Akira ransomware gang exploited an unsecured webcam to bypass EDR and launch encryption attacks on a victim’s network. The ransomware group used an unsecured webcam to encrypt systems within atarget’s network, bypassing Endpoint Detection and Response (EDR). Akira successfully encrypted files across the network.

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Ransomware IoT Encryption Passwords 126

Security Affairs

MAY 9, 2021

Cybersecurity and Infrastructure Security Agency (CISA) has published an analysis of the FiveHands ransomware that was recently detailed by FireEye’s Mandiant. The malware will also encrypt files in the recovery folder at C:Recovery, then it will write a ransom note to each folder and directory on the system called ‘read_me_unlock.txt’.

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Ransomware Penetration Testing Malware Cybercrime 145

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.

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Backups Ransomware Antivirus DNS 140

Security Affairs

NOVEMBER 1, 2021

The ATM black box attacks are quite popular in the cybercrime underground and several threat actors offer the hardware equipment and malware that could be used to compromise the ATMs. The vulnerabilities discovered by the security duo impacts the Wincor Cineo ATMs with the RM3 and CMD-V5 dispensers.

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Security Affairs

JANUARY 20, 2022

Diavol encrypts files solely using an RSA encryption key, and its code is capable of prioritizing file types to encrypt based on a pre-configured list of extensions defined by the attacker. “The FBI has not yet observed Diavol leak victim data, despite ransom notes including threats to leak stolen information.”

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Ransomware Banking Malware Encryption 130

Security Affairs

DECEMBER 22, 2022

The Vice Society ransomware group has adopted new custom ransomware, with a strong encryption scheme, in recent intrusions. SentinelOne researchers discovered that the Vice Society ransomware gang has started using a custom ransomware that implements a robust encryption scheme, using NTRUEncrypt and ChaCha20-Poly1305 algorithms.

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Ransomware Encryption Malware Education 145

Security Affairs

JANUARY 10, 2025

The malicious code was advertised on cybercrime forums for $3,000 per month. 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.

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Malware Advertising Antivirus Cybercrime 120

Security Affairs

NOVEMBER 19, 2023

Phobos variants are usually distributed by the SmokeLoader , but in 8Base campaigns, it has the ransomware component embedded in its encrypted payloads. 8base” file extension for encrypted documents, a circumstance that suggested a possible link to the 8Base group or the use of the same code-base for their ransomware.

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Security Affairs

JUNE 28, 2021

Experts believe that the decision of the group to leave the ransomware practice could be the result of an operational error, it was a bad idea to threaten the US police department due to the information that it manages. Metropolitan Police Department, encrypted its files and demanded a $4 million ransom. ” reported The Record.

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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. NOT MODIFY OR DELETE THIS FILE OR ANY ENCRYPTED FILES.

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Security Affairs

JULY 9, 2024

Upon execution, an encryption key is generated by CryptGenRandom() function. The malicious code uses the key to initialize ChaCha20 symmetric key and subsequently encrypt files. Once a file is encrypted, the symmetric file key is encrypted by RSA-4096 and appended to the end of the file.

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Security Affairs

JANUARY 23, 2024

In early January, independent security research and consulting team SRLabs discovered a vulnerability in Black Basta ransomware’s encryption algorithm and exploited it to create a free decryptor. Depending on the file size, the ransomware encrypts the initial 5000 bytes. continues the researchers.

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Hacking Encryption Ransomware Insurance 143

The Last Watchdog

OCTOBER 24, 2022

. • Create security awareness for employees. One of the most important ways to protect against data breaches is to increase employee security awareness. Employees are the first line of defense against cybercrime and should understand how to recognize phishing emails and what to do if they suspect them. Use a corporate VPN.

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Passwords Security Awareness Data breaches Cybersecurity 214

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. .”

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Ransomware Encryption Cybercrime Malware 98

Security Affairs

OCTOBER 19, 2022

Researchers at Palo Alto Network’s Unit 42 have linked the relatively new Ransom Cartel ransomware operation with the notorious REvil cybercrime gang. Most of the similarities between the two malicious codes relate to the encryption scheme. ” continues the report. ” . . ” continues the report.

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Security Affairs

APRIL 17, 2024

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.” ” continues the report. 0” at startup and “/tmp/log.1”

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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.

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Ransomware Encryption Antivirus VPN 141

Security Affairs

FEBRUARY 24, 2021

Security experts from FireEye linked the cyber attacks to the cybercrime group UNC2546, aka FIN11. Another circumstance that suggests the exploitation of the flaws in FTA servers was that the company systems were not encrypted with the Clop ransomware. Below a press release published by Accellion this week.

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