Watch Out! Microsoft Spotted Spike in Astaroth Fileless Malware Attacks

Security researchers at Microsoft have released details of a new widespread campaign distributing an infamous piece of fileless malware that was primarily being found targeting European and Brazilian users earlier this year. Dubbed Astaroth, the malware trojan has been making the rounds since at...

ScarCruft APT Adds Bluetooth Harvester to its Malware Bag of Tricks

The ScarCruft Korean-speaking APT is changing up its espionage tactics to include an unusual piece of malware devoted to harvesting Bluetooth information – while also showing some overlap with the DarkHotel APT. An analysis of ScarCruft’s binary infection procedure by Kaspersky Lab shows that in ...

ScarCruft continues to evolve, introduces Bluetooth harvester

Executive summary After publishing our initial series of blogposts back in 2016, we have continued to track the ScarCruft threat actor. ScarCruft is a Korean-speaking and allegedly state-sponsored threat actor that usually targets organizations and companies with links to the Korean peninsula. Th...

CrackMeJ1

This is a multi-staged crackme that implements several protections for antidebugging. Objective: Find the keys 3 to solve the crackme and make a keygen Hint: Run it on a VM :- / Crack Me by jSacco // This crack me uses antidebugging techniques such as: VM Detection , Traps and IsDebuggerPresent /...

Ubiquitous Bug Allows HIPAA-Protected Malware to Hide Behind Medical Images

A bug in a 30-year-old standard used for the exchange and storage of medical images has been uncovered; it allows an adversary to embed fully-functioning executable code into the image files captured by medical devices such as CT and MRI machines. This results in hybrid files that allow malware...

Dark Tequila: A Distilled Threat for Mexican Targets

Researchers have been tracking an ongoing malicious campaign targeting victims in Mexico, with a highly crafted tool built to steal financial information and login credentials for popular websites. Researchers at Kaspersky Lab said today that the campaign, dubbed Dark Tequila, and its supporting...

Dark Tequila Banking Malware Uncovered After 5 Years of Activity

Security researchers at Kaspersky Labs have uncovered a new, complex malware campaign that has been targeting customers of several Mexican banking institutions since at least 2013. Dubbed Dark Tequila , the campaign delivers an advanced keylogger malware that managed to stay under the radar for...

Dark Tequila Añejo

Dark Tequila is a complex malicious campaign targeting Mexican users, with the primary purpose of stealing financial information, as well as login credentials to popular websites that range from code versioning repositories to public file storage accounts and domain registrars. A multi-stage...

Targeted Spy Campaign Hits Russian Service Centers

A series of espionage attacks have been uncovered, targeted at service centers in Russia that provide maintenance and support for a variety of electronic goods. The payload is a commercial version of the Imminent Monitor tool, which is freely available for purchase as legitimate software. Its...

VPNFilter EXIF to C2 mechanism analysed

On May 23 2018, our colleagues from Cisco Talos published their excellent analysis of VPNFilter, an IoT / router malware which exhibits some worrying characteristics. Some of the things which stand out about VPNFilter are: It has a redundant, multi-stage command and control mechanism which uses...

Metamorfo Targets Brazilian Users with Banking Trojans

A recent spate of financial malware campaigns targeting Brazilian companies, collectively dubbed Metamorfo, uses “spray and pray” spam tactics to ensnare their victims. Across the various offensives, the bad actors are abusing legitimate, signed binaries to load the malicious code. As the name...

Word Attachment Delivers FormBook Malware, No Macros Required

A new wave of document attacks targeting inboxes do not require enabling macros in order for adversaries to trigger an infection chain that ultimately delivers FormBook malware. Researchers at Menlo Security are reporting a wave of attacks that began last month that are targeting financial and...

Hunting down Dofoil with Windows Defender ATP

Dofoil is a sophisticated threat that attempted to install coin miner malware on hundreds of thousands of computers in March, 2018. In previous blog posts we detailed how behavior monitoring and machine learning in Windows Defender AV protected customers from a massive Dofoil outbreak that we...

Amber - POC Reflective PE Packer

Amber is a proof of concept packer, it can pack regularly compiled PE files into reflective PE files that can be used as multi stage infection payloads. If you want to learn the packing methodology used inside the Amber check out below. PS: This is not a complete tool some things may break so tak...

Decoy Microsoft Word document delivers malware through a RAT

In this post, we take a look at a Microsoft Word document which itself is somewhat clean, but is used to launch a multi-stage attack that relies on the hyperlink feature in the OpenXML format. This then loads another document that contains an exploit. Most malicious Microsoft Office documents...

When Phishing Starts from the Inside

A growing concern of security professionals is internal phishing attacks - phishing emails sent from one trusted user to another of the same organization. Internal phishing emails are used in multi-stage attacks in which an email account is owned either by controlling the users device with...

CCleanup: A Vast Number of Machines at Risk

This post was authored by: Edmund Brumaghin, Ross Gibb, Warren Mercer, Matthew Molyett, and Craig WilliamsUpdate 9/18: CCleaner Cloud version 1.07.3191 is also reported to be affectedUpdate 9/19: This issue was discovered and reported by both Morphisec and Cisco in separate in-field cases and...

Threat Analysis: Word Documents with Embedded Macros Leveraging Emotet Trojan

Many customers have recently asked how Carbon Black's solutions detect macros and droppers specifically referencing Emotet dropper files. Customers often say that macros and droppers are an ongoing problem in their environments. They are also seen day-to-day by most practitioners. The analysis...

Google Kicks Out Largest Android Adware Family From The Play Store

With the rise in the mobile market, Adware has become one of the most prevalent mobile threats in the world. Adware has traditionally been used to aggressively push ads like banners or pop-ups on mobile screens to make money. The troublesome part is that Adware is now becoming trojanized and more...

'Regin' - 'State-Sponsored' Spying Tool Targeted Govts, Infrastructures for Years

Researchers have uncovered a highly advanced, sophisticated piece of malware they believe was used to spy on a wide-range of international targets including governments, infrastructure operators and other high-profile individuals since at least 2008. The nasty malware, dubbed "Regin", is said to ...