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.

Cybercrime 338

Cybercrime VPN Malware Ransomware 338

Security Affairs

SEPTEMBER 1, 2024

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape.

Malware 133

Malware Ransomware Engineering Hacking 133

Security Affairs

JANUARY 13, 2024

The Finish National Cybersecurity Center (NCSC-FI) warns of increased Akira ransomware attacks targeting NAS and tape backup devices of organizations in the country. The Finish National Cybersecurity Center (NCSC-FI) reported an increase in Akira ransomware attacks, targeting organizations in the country. concludes the alert.

Ransomware 141

Ransomware Backups VPN Authentication 141

Security Affairs

DECEMBER 4, 2024

BT Group (formerly British Telecom)’s Conferencing division shut down some of its servers following a Black Basta ransomware attack. British multinational telecommunications holding company BT Group (formerly British Telecom) announced it has shut down some of its servers following a Black Basta ransomware attack.

Ransomware 133

Ransomware Telecommunications Healthcare Insurance 133

Security Affairs

JULY 14, 2024

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape.

Malware 134

Malware Spyware Internet Internet 134

Security Affairs

NOVEMBER 29, 2024

Russian authorities arrested ransomware affiliate Mikhail Matveev, aka Wazawaka, for developing malware and ties to hacking groups. In May 2023, the US Justice Department charged Russian national Mikhail Pavlovich Matveev for his alleged role in multiple ransomware attacks. ” reported RIA Novosti.

Ransomware 126

Ransomware Healthcare Hacking Malware 126

Security Affairs

OCTOBER 20, 2024

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape. Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape.

Malware 132

Malware Ransomware Encryption Phishing 132

Security Affairs

NOVEMBER 12, 2024

New Ymir ransomware was deployed in attacks shortly after systems were breached by RustyStealer malware, Kaspersky warns. Kaspersky researchers discovered a new ransomware family, called Ymir ransomware , which attackers deployed after breaching systems via PowerShell commands. ” concludes the report.

Ransomware 128

Ransomware Malware Encryption Hacking 128

Security Affairs

OCTOBER 27, 2024

Russian authorities sentenced four members of the REvil ransomware operation to several years in prison in Russia. Four former members of the REvil ransomware group were sentenced in Russia for hacking and money laundering, marking a rare case of Russian gang members being convicted in the country. “On Friday, October 25, the St.

Ransomware 144

Ransomware Hacking Malware Cybercrime 144

Security Affairs

DECEMBER 1, 2023

The popular cybersecurity researcher Patrick Wardle dissected the new macOS ransomware Turtle used to target Apple devices. The popular cyber security researcher Patrick Wardle published a detailed analysis of the new macOS ransomware Turtle. In some cases, the anti-virus solution flagged the binary as Windows malware (“Win32.Troj.Undef”).

Ransomware 144

Ransomware Encryption Malware Cybercrime 144

Security Affairs

SEPTEMBER 22, 2024

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape. UNC1860 and the Temple of Oats: Iran’s Hidden Hand in Middle Eastern Networks Follow me on Twitter: @securityaffairs and Facebook and Mastodon Pierluigi Paganini

Malware 133

Malware Healthcare IoT Cryptocurrency 133

Security Affairs

SEPTEMBER 15, 2024

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape.

Malware 128

Malware Spyware Banking Ransomware 128

Security Affairs

JULY 7, 2024

Today marks the launch of the Security Affairs newsletter, specializing in Malware. Each week, it will feature a collection of the best articles and research on malware. This newsletter complements the weekly one you already receive.

Malware 128

Malware Spyware Cybercrime Ransomware 128

Security Affairs

MARCH 11, 2024

BianLian ransomware group was spotted exploiting vulnerabilities in JetBrains TeamCity software in recent attacks. Researchers from GuidePoint Security noticed, while investigating a recent attack linked to the BianLian ransomware group, that the threat actors gained initial access to the target by exploiting flaws in a TeamCity server.

Ransomware 138

Ransomware Malware Manufacturing Healthcare 138

Security Affairs

SEPTEMBER 2, 2024

A new ransomware-as-a-service (RaaS) operation called Cicada3301 has emerged in the threat landscape and already targeted tens of companies. Cicada3301 is a new ransomware-as-a-service (RaaS) operation that appeared in the threat landscape. The Cicada3301 ransomware is written in Rust and targets both Windows and Linux/ESXi hosts.

Ransomware 141

Ransomware Encryption Malware Cybercrime 141

Security Affairs

JANUARY 30, 2024

Energy management and industrial automation firm Schneider Electric suffered a data breach after a Cactus ransomware attack. The attack was carried out by the Cactus ransomware gang , which claims to have stolen terabytes of corporate data from the company. The Cactus ransomware relies on multiple legitimate tools (e.g.

Ransomware 144

Ransomware Hacking Data breaches Digital transformation 144

Security Affairs

NOVEMBER 19, 2023

8Base ransomware operators were observed using a variant of the Phobos ransomware in a recent wave of attacks. Cisco Talos researchers observed 8Base ransomware operators using a variant of the Phobos ransomware in recent attacks. The ransomware component is then decrypted and loaded into the SmokeLoader process’ memory.

Ransomware 143

Ransomware Encryption Backups Manufacturing 143

Security Affairs

DECEMBER 7, 2024

The 8Base ransomware group attacked Croatia’s Port of Rijeka, stealing sensitive data, including contracts and accounting info. A cyber attack hit the Port of Rijeka in Croatia, the 8Base ransomware group claimed responsibility for the security breach. The Port of Rijeka (Luka Rijeka d.d.),

Ransomware 132

Ransomware Hacking Accountability Cyber Attacks 132

Security Affairs

APRIL 17, 2024

Threat actors are exploiting the CVE-2023-22518 flaw in Atlassian servers to deploy a Linux variant of Cerber (aka C3RB3R) ransomware. At the end of October 2023, Atlassian warned of a critical security flaw, tracked as CVE-2023-22518 (CVSS score 9.1), that affects all versions of Confluence Data Center and Server.

Ransomware 145

Ransomware Encryption Malware Accountability 145

Security Affairs

SEPTEMBER 13, 2024

A new Linux malware called Hadooken targets Oracle WebLogic servers, it has been linked to several ransomware families. Aqua Security Nautilus researchers discovered a new Linux malware, called Hadooken, targeting Weblogic servers. Upon execution, the malware drops a Tsunami malware and deploys a cryptominer.

Malware 133

Malware Internet Internet Ransomware 133

Security Affairs

NOVEMBER 19, 2024

Russian Phobos ransomware operator Evgenii Ptitsyn, accused of managing attacks, was extradited from South Korea to the US to face cybercrime charges. Russian Phobos ransomware operator Evgenii Ptitsyn, suspected of playing a key role in the ransomware operations, was extradited from South Korea to the US to face cybercrime charges.

Cybercrime 123

Cybercrime Ransomware Healthcare Education 123

Security Affairs

SEPTEMBER 8, 2024

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape.

Malware 123

Malware Insurance Ransomware Government 123

Security Affairs

DECEMBER 4, 2023

Microsoft warns of ongoing malvertising attacks using the DanaBot malware to deploy the CACTUS ransomware. Microsoft uncovered ongoing malvertising attacks using the DanaBot Trojan (Storm-1044) to deploy the CACTUS ransomware. Microsoft the campaign to the ransomware operator Storm-0216 (Twisted Spider, UNC2198).

Ransomware 143

Ransomware Malware Banking Hacking 143

Security Affairs

NOVEMBER 13, 2024

Bitdefender released a decryptor for the ShrinkLocker ransomware, which modifies BitLocker configurations to encrypt a system’s drives. ShrinkLocker ransomware was first discovered in May 2024 by researchers from Kaspersky. “ShrinkLocker is a novel ransomware strain that leverages a unique approach to encrypt systems.

Ransomware 131

Ransomware Encryption Passwords Backups 131

Security Affairs

NOVEMBER 8, 2024

Texas oilfield supplier Newpark Resources suffered a ransomware attack that disrupted its information systems and business applications. Texas oilfield supplier Newpark Resources revealed that a ransomware attack on October 29 disrupted access to some of its information systems and business applications.

Ransomware 131

Ransomware Manufacturing Malware Cybersecurity 131

Security Affairs

JUNE 22, 2024

The RansomHub ransomware operators added a Linux encryptor to their arsenal, the version targets VMware ESXi environments. RansomHub ransomware operation relies on a new Linux version of the encrypted to target VMware ESXi environments. The malware targets multiple platforms, including Windows, Linux, macOS, ESXi, and Android.

Ransomware 143

Ransomware Encryption Backups Malware 143

Security Affairs

MARCH 20, 2024

security flaws in JetBrains TeamCity to deploy multiple malware families and gain administrative control over impacted systems. In early March, Rapid7 researchers disclosed two new critical security vulnerabilities, tracked as CVE-2024-27198 (CVSS score: 9.8) and CVE-2024-27199 (CVSS score:7.3), in JetBrains TeamCity On-Premises.

Malware 141

Malware Authentication Cryptocurrency Ransomware 141

Security Affairs

AUGUST 25, 2024

Researchers spotted a new stealthy Linux malware named sedexp that uses Linux udev rules to achieve persistence and evade detection. Aon’s Cyber Solutions spotted a new malware family, called sedexp, that relies on a lesser-known Linux persistence technique. Sedexp uses udev rules to maintain persistence. ” concludes the report.

Malware 144

Malware Hacking Ransomware Cybercrime 144

Security Affairs

NOVEMBER 21, 2024

Mexico is investigating a ransomware attack targeting its legal affairs office, as confirmed by the president amidst growing cybersecurity concerns. Mexico’s president announced the government is investigating an alleged ransomware hack that targeted the administration’s legal affairs office. Knight, also known as Cyclops 2.0,

Government 145

Government Hacking Ransomware Insurance 145

The Last Watchdog

MAY 15, 2023

Funso Richard , Information Security Officer at Ensemble , highlighted the gravity of these threats. These include ransomware targeting backend servers, distributed denial of service (DDoS) attacks, destructive malware, and even weaponizing charging stations to deploy malware.

Malware 230

Malware Manufacturing IoT Software 230

Security Affairs

FEBRUARY 10, 2024

Bitdefender Researchers linked a new macOS backdoor, named RustDoor, to the Black Basta and Alphv/BlackCat ransomware operations. Researchers from Bitdefender discovered a new macOS backdoor, dubbed RustDoor, which appears to be linked to ransomware operations Black Basta and Alphv/BlackCat. ” concludes the report.

Ransomware 142

Ransomware Architecture Malware Passwords 142

Security Affairs

APRIL 21, 2024

Government agencies revealed that Akira ransomware has breached over 250 entities worldwide and received over $42 million in ransom payments. Like other ransomware gangs, the group has developed a Linux encryptor to target VMware ESXi servers. It was this first time that the operators adopted this tactic.

Ransomware 143

Ransomware Encryption Antivirus VPN 143

Security Affairs

JANUARY 2, 2024

A team of researchers released a suite of tools that could help victims to decrypt data encrypted with by the Black Basta ransomware. 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.

Ransomware 140

Ransomware Encryption Insurance Malware 140

Security Affairs

JANUARY 26, 2024

The Russian national malware developer Vladimir Dunaev was sentenced to more than 5 years in prison for his role in the TrickBot operation. The Russian national Vladimir Dunaev (40) has been sentenced in the US to 64 months in prison for his role in the development and distribution of the TrickBot malware. in October 2021.

Malware 140

Malware Identity Theft Banking Ransomware 140

Security Affairs

FEBRUARY 27, 2024

New threat actors have started exploiting ConnectWise ScreenConnect vulnerabilities, including the Black Basta and Bl00dy ransomware gangs. Trend Micro confirmed that Black Basta and Bl00dy ransomware groups are actively exploiting both flaws and shared details about their attack chains. ” Trend Micro concludes.

Ransomware 143

Ransomware Malware Software Authentication 143

Security Affairs

JANUARY 10, 2024

Researchers and the Dutch Police released a decryptor for the Tortilla variant of the Babuk ransomware after the arrest of its operator. Cisco Talos researchers obtained a decryptor for the Babuk Tortilla ransomware variant. The experts were able to extract and share the private decryption key used by the ransomware operators.

Ransomware 139

Ransomware Encryption Engineering Malware 139

Security Affairs

JANUARY 24, 2024

A ransomware attack against the Finnish IT services provider Tietoevry disrupted the services of some Swedish government agencies and shops. Tietoevry is a Finnish multinational information technology (IT) and consulting company that provides managed services and cloud hosting for the enterprise.

Ransomware 142

Ransomware VPN Government Retail 142