Emotet Re-emerges with Help from TrickBot

Emotet has recently reemerged after being taken down less than a year ago by global law enforcement as coordinated by Europol and Eurojust. The takedown was achieved after law enforcement compromised a command-and-control system, and then pushed a specially crafted update to Emotet agents that...

Detecting Evasive Malware on IoT Devices Using Electromagnetic Emanations

Cybersecurity researchers have proposed a novel approach that harnesses electromagnetic field emanations from the Internet of Things IoT devices as a side-channel to glean precise knowledge about the different kinds of malware targeting the embedded systems, even in scenarios where obfuscation...

PMAT-labs - Labs For Practical Malware Analysis And Triage

Welcome to the labs for Practical Malware Analysis & Triage. WARNING Read this carefully before proceeding. This repository contains live malware samples for use in the Practical Malware Analysis & Triage course PMAT. These samples are either written to emulate common malware characteristics or a...

Millions of Routers, IoT Devices at Risk from BotenaGo Malware

Newly surfaced malware that is difficult to detect and written in Google’s open-source programming language has the potential to exploit millions of routers and IoT devices, researchers have found. Discovered by researchers at AT&T AlienLabs, BotenaGo can exploit more than 30 different...

Extracting type information from Go binaries

During the 2021 edition of the SAS conference, I had the pleasure of delivering a workshop focused on reverse-engineering Go binaries. The goal of the workshop was to share basic knowledge that would allow analysts to immediately start looking into malware written in Go. A YouTube version of the...

‘Tomiris’ Backdoor Linked to SolarWinds Malware

Researchers have discovered a campaign delivering a previously unknown backdoor they’re calling Tomiris. Analysis of the new malware suggests that we may not have heard the last from the Nobelium advanced persistent threat APT behind the sprawling SolarWinds supply-chain attacks of 2020. Namely,...

StreamDivert - Redirecting (Specific) TCP, UDP And ICMP Traffic To Another Destination

StreamDivert is a tool to man-in-the-middle or relay in and outgoing network connections on a system. It has the ability to, for example, relay all incoming SMB connections to port 445 to another server, or only relay specific incoming SMB connections from a specific set of source IP's to another...

Wake me up till SAS summit ends

What do cyberthreats, Kubernetes and donuts have in common – except that all three end in "ts", that is? All these topics will be mentioned during the new SAS@Home online conference, scheduled for September 28th-29th, 2021. To be more specific, there will be a workshop titled, "Prevent & Detect...

ELFant in the Room – capa v3

Since our initial public release of capa, incident responders and reverse engineers have used the tool to automatically identify capabilities in Windows executables. With our newest code and ruleset updates, capa v3 also identifies capabilities in Executable and Linkable Format ELF files, such as...

Operation ‘Harvest’: A Deep Dive into a Long-term Campaign

ARCHIVED STORY Operation ‘Harvest’: A Deep Dive into a Long-term Campaign By Christiaan Beek · September 14, 2021 A special thanks to our Professional Services’ IR team, ShadowServer, for historical context on C2 domains, and Thomas Roccia/Leandro Velasco for malware analysis support. Executive...

Operation ‘Harvest’: A Deep Dive into a Long-term Campaign

ARCHIVED STORY Operation ‘Harvest’: A Deep Dive into a Long-term Campaign By Christiaan Beek · September 14, 2021 A special thanks to our Professional Services’ IR team,ShadowServer, for historical context on C2 domains, and Thomas Roccia/Leandro Velasco for malware analysis support. Executive...

Linux Implementation of Cobalt Strike Beacon Targeting Organizations Worldwide

Researchers on Monday took the wraps off a newly discovered Linux and Windows re-implementation of Cobalt Strike Beacon that's actively set its sights on government, telecommunications, information technology, and financial institutions in the wild. The as-yet undetected version of the penetratio...

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...

CISA Releases Five Pulse Secure-Related MARs

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

Karton - Distributed Malware Processing Framework Based On Python, Redis And MinIO

Distributed malware processing framework based on Python, Redis and MinIO. The idea Karton is a robust framework for creating flexible and lightweight malware analysis backends. It can be used to connect malware analysis systems into a robust pipeline with very little effort. We've been in the...

MISP Cross-Site Scripting Vulnerability (CNVD-2021-61084)

MISP is an open source software solution. The product is used to collect, store, distribute, and share network security metrics, and has features such as threat network security event analysis and malware analysis. a cross-site scripting vulnerability exists in MISP, which stems from...

DarkSide Ransomware: Best Practices for Preventing Business Disruption from Ransomware Attacks

Summary This Advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge ATT &CK® framework, Version 9. See the ATT&CK for Enterprise for all referenced threat actor tactics and techniques. The Cybersecurity and Infrastructure Security Agency CISA and the Federal Bureau of...

CISA Publishes Malware Analysis Report and Updates Alert on DarkSide Ransomware

CISA has published a new Malware Analysis Report MAR on DarkSide Ransomware and updated Alert AA21-131A: DarkSide Ransomware: Best Practices for Preventing Business Disruption from Ransomware Attacks, originally released May 11, 2021. This update adds indicators of compromise associated with a...

REvil Ransomware Code Ripped Off by Rivals

They say imitation is the sincerest form of flattery: The LV ransomware, a strain that cropped up just this spring, turns out to be based on what is most likely pirated REvil ransomware code, according to researchers. A malware analysis of LV from Secureworks Counter Threat Unit CTU found that it...

4 things you should know about testing AV software with VirusTotal’s free online multiscanner

As COVID-19 soldiers on, small and medium-size businesses now feel as ripe for malware attacks as deep-pocketed multinationals. SMBs see that, along with remote work, our pandemic has also brought troubling new holes to their security. This means cybercriminals—equal opportunity charlatans that...