ViperSoftX Updates Encryption, Steals Data

We observed cryptocurrency and information stealer ViperSoftX evading initial loader detection and making its lure more believable by making the initial package loader via cracks, keygens, activators, and packers non-malicious. We also noted more sophisticated encryption and basic anti-analysis...

DEV-1101 enables high-volume AiTM campaigns with open-source phishing kit

Adversary-in-the-middle AiTM phishing kits are part of an increasing trend that is observed supplanting many other less advanced forms of phishing. AiTM phishing is capable of circumventing multifactor authentication MFA through reverse-proxy functionality. DEV-1101 is an actor tracked by Microso...

Lazarus Group Likely Using New WinorDLL64 Backdoor to Exfiltrate Sensitive Data

A new backdoor associated with a malware downloader named Wslink has been discovered, with the tool likely used by the notorious North Korea-aligned Lazarus Group, new findings reveal. The payload, dubbed WinorDLL64 by ESET, is a fully-featured implant that can exfiltrate, overwrite, and delete...

Cybercriminals Using Polyglot Files in Malware Distribution to Fly Under the Radar

Remote access trojans such as StrRAT and Ratty are being distributed as a combination of polyglot and malicious Java archive JAR files, once again highlighting how threat actors are continuously finding new ways to fly under the radar. "Attackers now use the polyglot technique to confuse security...

New Golang-based 'Agenda Ransomware' Can Be Customized For Each Victim

A new ransomware strain written in Golang dubbed "Agenda" has been spotted in the wild, targeting healthcare and education entities in Indonesia, Saudi Arabia, South Africa, and Thailand. "Agenda can reboot systems in safe mode, attempts to stop many server-specific processes and services, and ha...

Emotet Spam Abuses Unconventional IP Address Formats to Spread Malware

We found waves of Emotet spam campaigns using unconventional IP addresses to evade detection...

New Fileless Malware Uses Windows Registry as Storage to Evade Detection

A new JavaScript-based remote access Trojan RAT propagated via a social engineering campaign has been observed employing sneaky "fileless" techniques as part of its detection-evasion methods to elude discovery and analysis. Dubbed DarkWatchman by researchers from Prevailion's Adversarial...

Magecart Skimmers Are Alive and Well – Constant Vigilance Is Required

Magecart skimmers are here to stay, and they’re becoming more sophisticated, more creative, and harder to detect. In this post, we reveal a new skimmer infrastructure that targets ecommerce sites all over the world with advanced methods of detection evasion and obfuscation...

TeamTNT’s New Tools Target Multiple OSes

The TeamTNT malware pushers have a slew of new toys with which to wreak havoc – multiple shell/batch scripts, open-source tools, a cryptocurrency miner, an IRC and more – that have inflicted more than 5,000 infections globally as antivirus AV tools struggle to catch up with the newest malware...

Microsoft Warns of Widespread Phishing Attacks Using Open Redirects

Microsoft is warning of a widespread credential phishing campaign that leverages open redirector links in email communications as a vector to trick users into visiting malicious websites while effectively bypassing security software. "Attackers combine these links with social engineering baits th...

Widespread credential phishing campaign abuses open redirector links

Microsoft has been actively tracking a widespread credential phishing campaign using open redirector links. Attackers combine these links with social engineering baits that impersonate well-known productivity tools and services to lure users into clicking. Doing so leads to a series of...

Mount Locker Ransomware Aggressively Changes Up Tactics

The Mount Locker ransomware has shaken things up in recent campaigns with more sophisticated scripting and anti-prevention features, according to researchers. And, the change in tactics appears to coincide with a rebranding for the malware into “AstroLocker.” According to researchers, Mount Locke...

Microsoft, FireEye Unmask More Malware Linked to SolarWinds Attackers

Researchers have uncovered more custom malware that is being used by the threat group behind the SolarWinds attack. Researchers with Microsoft and FireEye identified three new pieces of malware that the companies said are being used in late-stage activity by the threat actor previously called...

TeamTNT Cloaks Malware With Open-Source Tool

The TeamTNT threat group has added a new detection-evasion tool to its arsenal, helping its cryptomining malware skirt by defense teams. The TeamTNT cybercrime group is known for cloud-based attacks, including targeting Amazon Web Services AWS credentials in order to break into the cloud and use ...

CVE-2020-1999

A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-bas...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Microsoft

SMBGhost-LPE-Metasploit-Module This is an implementation of th...

Dark_Nexus Botnet Compromises Thousands of ASUS, D-Link Routers

A new botnet has compromised hundreds of ASUS, D-Link and Dasan Zhone routers over the past three months, as well as Internet of Things IoT devices like video recorders and thermal cameras. The botnet, called darknexus based on a string it prints in its banner, uses processes similar to previous...

Threat Analysis Unit (TAU) Threat Intelligence Notification: CoronaVirus Ransomware

"CoronaVirus" Ransomware has been found distributed via a phishing website. The malicious website will distribute a trojan downloader which then leads to downloading additional malicious payloads: the Kpot InfoStealer and Coronavirus Ransomware. "CoronaVirus" Ransomware will perform the deletion ...

New TrickBot Variant Updates Anti-Analysis Tricks

Researchers uncovered a new variant of the TrickBot malware that relies on new anti-analysis techniques, an updated method for downloading its payload as well as adopting minor changes to the integration of its components. TrickBot is a module-based malware that, while first identified as a banki...

Fileless Attacks: The Next Frontier for Cybercrime

The world of cybersecurity is rapidly evolving, and so are the methods of cybercriminals. More and more attackers are moving away from traditional malware—in fact, 60% of today’s attacks involve fileless techniques. A fileless attack also known as a “memory-based” or “live-off-the-land” attack is...