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New EwDoor Botnet is targeting AT&T customers

Security Affairs

Experts from Qihoo 360’s Network Security Research Lab discovered a new botnet, dubbed EwDoor , that targets AT&T customers using EdgeMarc Enterprise Session Border Controller (ESBC) edge devices that are publicly exposed to the Internet. ” reads the analysis published by Qihoo 360.

DDOS 140
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DoppelPaymer ransomware group suspects identified

Malwarebytes

During their active period (2017 - 2021), more than 600 victims worldwide were extorted, some of them up to double-digit millions. Create a plan for patching vulnerabilities in internet-facing systems quickly; and disable or harden remote access like RDP and VPNs. Stop malicious encryption. Create offsite, offline backups.

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A Closer Look at the Snatch Data Ransom Group

Krebs on Security

The government says Snatch used a customized ransomware variant notable for rebooting Microsoft Windows devices into Safe Mode — enabling the ransomware to circumvent detection by antivirus or endpoint protection — and then encrypting files when few services are running. Details after contacting on jabber: truniger@xmpp[.]jp.”

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Wannacry, the hybrid malware that brought the world to its knees

Security Affairs

In the early afternoon of Friday 12 May 2017, the media broke the news of a global computer security attack carried out through a malicious code capable of encrypting data residing in information systems and demanding a ransom in cryptocurrency to restore them, the Wannacry ransomware. Cryptolocker and exploit components.

Malware 103
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Post-Quantum Cryptography: Lessons Learned from SHA-1 Deprecation

Security Boulevard

Despite all the emphasis around the shift from SHA-1 to SHA-2, 35% of websites were still utilizing SHA-1 certificates as of November 2016, according to research from Venafi in 2017. Post-Quantum Encryption Algorithms Announced. Challenges toward post-quantum cryptography: confidentiality and authentication. SHA-1 Deprecation.

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CloudWizard APT: the bad magic story goes on

SecureList

From the WmiPrvSE.exe process, it makes a backup of the VFS file, copying mods.lrc to mods.lrs. Encryption and communication As we have mentioned above, two modules (Crypton.dll and Internet.dll) are bundled with every installation of the CloudWizard framework. module execution results) is encrypted with a combination of AES and RSA.

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Ransomware Protection in 2021

eSecurity Planet

The internet is fraught with peril these days, but nothing strikes more fear into users and IT security pros than the threat of ransomware. All of your files are encrypted with RSA-2048 and AES-128 ciphers.” Attackers will inform the victim that their data is encrypted. IMPORTANT INFORMATION !!! Screenshot example.