This New Malware Family Using CLFS Log Files to Avoid Detection

Cybersecurity researchers have disclosed details about a new malware family that relies on the Common Log File System CLFS to hide a second-stage payload in registry transaction files in an attempt to evade detection mechanisms. FireEye's Mandiant Advanced Practices team, which made the discovery...

LockFile Ransomware Uses Never-Before Seen Encryption to Avoid Detection

Researchers discovered a novel ransomware emerging on the heels of the ProxyShell vulnerabilities discovery in Microsoft Exchange servers. The threat, dubbed LockFile, uses a unique “intermittent encryption” method as a way to evade detection as well as adopting tactics from previous ransomware...

FBI Releases Indicators of Compromise Associated with Hive Ransomware

The Federal Bureau of Investigation FBI has released a Flash report detailing indicators of compromise IOCs and tactics, techniques, and procedures TTPs associated with ransomware attacks by Hive, a likely Ransomware-as-a-Service organization consisting of a number of actors using multiple...

How to debug and resolve ADM-HA DB Streaming broken issues

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Effective Threat-Hunting Queries in a Redacted World

A decade ago, hunting for adversary infrastructure was often as simple as monitoring a domain registrant’s name or phone number in public WHOIS records. As bad actors have moved first toward privacy protection services and then gained further obscurity behind laws such as the General Data...

Exploitation of Pulse Connect Secure Vulnerabilities

Summary The Cybersecurity and Infrastructure Security Agency CISA is aware of compromises affecting a number of U.S. government agencies, critical infrastructure entities, and other private sector organizations by a cyber threat actor—or actors—beginning in June 2020 or earlier related to...

Cloudflare mitigated one of the largest DDoS attack involving 17.2 million rps

Web infrastructure and website security company Cloudflare on Thursday disclosed that it mitigated the largest ever volumetric distributed denial of service DDoS attack recorded to date. The attack, launched via a Mirai botnet, is said to have targeted an unnamed customer in the financial industr...

How to proactively defend against Mozi IoT botnet

Mozi is a peer-to-peer P2P botnet that uses a BitTorrent-like network to infect IoT devices such as network gateways and digital video records DVRs. It works by exploiting weak telnet passwords1 and nearly a dozen unpatched IoT vulnerabilities2 and it’s been used to conduct distributed...

How to proactively defend against Mozi IoT botnet

Mozi is a peer-to-peer P2P botnet that uses a BitTorrent-like network to infect IoT devices such as network gateways and digital video records DVRs. It works by exploiting weak telnet passwords1 and nearly a dozen unpatched IoT vulnerabilities2 and it’s been used to conduct distributed...

Have you patched the vulnerabilities in Microsoft Exchange Server?

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. Microsoft Exchange Server vulnerabilities have been officially patched for five months now. These vulnerabilities are actively exploited by multiple threat actors named DeadRinger. DeadRinger has been affecting the...

WordPress Sites Abused in Aggah Spear-Phishing Campaign

Threat actors are using compromised WordPress websites to target manufacturers across Asia with a new spear-phishing campaign that delivers the Warzone RAT, a commodity infostealer available widely for purchase on criminal forums, researchers have found. The threat group Aggah, believed to be...

Tenacity – An Adversary Emulation Tool for Persistence

Persistence is one of the more sought-after techniques of an attacker or adversary. Persistence is achieved through a set of tactics or techniques that adversaries use to maintain their foothold on compromised systems across restarts, changed credentials, and other interruptions that could cut of...

Sharing the first SimuLand dataset to expedite research and learn about adversary tradecraft

Last month, we introduced the SimuLand project to help security researchers around the world deploy lab environments to reproduce well-known attack scenarios, actively test detections, and learn more about the underlying behavior and implementation of adversary techniques. Since the release of th...

Sharing the first SimuLand dataset to expedite research and learn about adversary tradecraft

Last month, we introduced the SimuLand project to help security researchers around the world deploy lab environments to reproduce well-known attack scenarios, actively test detections, and learn more about the underlying behavior and implementation of adversary techniques. Since the release of th...

NSA issues advice for securing wireless devices

By releasing an information sheet that provides guidance on securing wireless devices while in public pdf—for National Security System, Department of Defense, and Defense Industrial Base teleworkers—the NSA has provided useful information on malicious techniques used by cyber actors, and ways to...

Several Malicious Typosquatted Python Libraries Found On PyPI Repository

As many as eight Python packages that were downloaded more than 30,000 times have been removed from the PyPI portal for containing malicious code, once again highlighting how software package repositories are evolving into a popular target for supply chain attacks. "Lack of moderation and automat...

Six Malicious Linux Shell Scripts Used to Evade Defenses and How to Stop Them

Siddartha Sharma and Adhokshaj Mishra Evasive techniques used by attackers, date back to the earlier days, when base64 and other common encoding schemes were used. Today, attackers are adopting new Linux shell script tactics and techniques to disable firewalls, monitoring agents and modifying...

Awesome-Red-Teaming

This is an offensive tool for Red Teaming. It is a list of resources for anyone wishing to learn about Red Teaming, including initial access, execution, persistence, privilege escalation, defense evasion, credential access, discovery, lateral movement, collection, exfiltration, command and contro...

White Box Testing What Is, Types, Techniques, Example

White Box Testing is programming trying, or rather inner center and foundation. Get familiar with about this strategy in this article. What is White Box Testing? White Box Testing can be depicted as a program-testing methodology in which a product’s interior construction, plan and coding are trie...

Malware Targeting Pulse Secure Devices

As part of CISA’s ongoing response to Pulse Secure compromises, CISA has analyzed 13 malware samples related to exploited Pulse Secure devices. CISA encourages users and administrators to review the following 13 malware analysis reports MARs for threat actor techniques, tactics, and procedures TT...