Post-Quantum Secure Aggregation Via Code-Based Homomorphic Encryption

Secure aggregation enables aggregation of inputs from multiple parties without revealing individual contributions to the server or other clients. Existing post-quantum approaches based on homomorphic encryption offer practical efficiency but predominantly rely on lattice-based hardness assumption...

⚡ THN Weekly Recap: Router Hacks, PyPI Attacks, New Ransomware Decryptor, and More

From sophisticated nation-state campaigns to stealthy malware lurking in unexpected places, this week's cybersecurity landscape is a reminder that attackers are always evolving. Advanced threat groups are exploiting outdated hardware, abusing legitimate tools for financial fraud, and finding new...

A refresher on Talos’ open-source tools and the importance of the open-source community

Open-source software that is free to download, deploy and modify is a vital component in the fight for cyber security. Freely available software not only helps defend systems that would otherwise be unprotected, but it also allows people to learn and develop vital cybersecurity skills. In this...

New Venus Ransomware Targets Healthcare industry

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary Venus ransomware, also called Goodgame, has been a source of concern since August 2022. Venus ransomware is an example of the legacy ransomware model: a standalone package sold on underground markets...

GHSA-V723-58JV-2QC4 Exposure of Sensitive Information to an Unauthorized Actor in OpenSAML

The 1 BasicParserPool, 2 StaticBasicParserPool, 3 XML Decrypter, and 4 SAML Decrypter in Shibboleth OpenSAML-Java before 2.6.1 set the expandEntityReferences property to true, which allows remote attackers to conduct XML external entity XXE attacks via a crafted XML DOCTYPE declaration...

A new secret stash for “fileless” malware

In February 2022 we observed the technique of putting the shellcode into Windows event logs for the first time "in the wild" during the malicious campaign. It allows the "fileless" last stage Trojan to be hidden from plain sight in the file system. Such attention to the event logs in the campaign...

A new rootkit comes to an ATM near you

Its not unusual to hear about malware created to affect automated teller machines ATMs. Malware can be planted at the ATMs PC or its network, or attackers could launch a Man-in-the-Middle MiTM attack. Recently, a new rootkit, which the Mandiant Advanced Practices team have named CAKETAP, was foun...

No More Ransom Saves Victims Nearly €1 billion Over 5 Years

To date, the No More Ransom repository of ransomware decryptors has helped more than 6 million victims recover their files, keeping nearly a billion euros out of the hands of cybercriminals, according to a Monday release. Launched five years ago, No More Ransom is maintained via cooperation betwe...

Avaddon Ransomware Gang Evaporates Amid Global Crackdowns

Ransomware group Avaddon has decided to shutter its criminal enterprise after landing in the crosshairs of law-enforcement agencies in the U.S. and Australia. Avaddon, a prolific ransomware-as-a-service RaaS provider, released its decryption keys to BleepingComputer — 2,934 in total — with each k...

RagnarLocker Ransomware Threatens to Release Confidential Information | McAfee Blogs

ARCHIVED STORY RagnarLocker Ransomware Threatens to Release Confidential Information Alexandre Mundo · JUN 09, 2020 EXECUTIVE SUMMARY The RagnarLocker ransomware first appeared in the wild at the end of December 2019 as part of a campaign against compromised networks targeted by its operators. Th...

On Shadowbrokers, Cisco, Sweet32, Wildfire, and More

Mike Mimoso and Chris Brook discuss the news of the week, including the latest on ShadowBrokers and Cisco, the Sweet32 collision attack, decryptors for the Wildfire ransomware, and this week’s gaming forum breaches. Download: ThreatpostNewsWrapAugust262016.mp3 Music by Chris Gonsalves...