FIN7 Evolution and the Phishing LNK

FIN7 is a financially-motivated threat group that has been associated with malicious operations dating back to late 2015. FIN7 is referred to by many vendors as “Carbanak Group”, although we do not equate all usage of the CARBANAK backdoor with FIN7. FireEye recently observed a FIN7 spear phishin...

FIN7 Evolution and the Phishing LNK

FIN7 is a financially-motivated threat group that has been associated with malicious operations dating back to late 2015. FIN7 is referred to by many vendors as “Carbanak Group”, although we do not equate all usage of the CARBANAK backdoor with FIN7. FireEye recently observed a FIN7 spear phishin...

Wave of Java-Based RATs Target Tax Filers

Spammers are spreading Java-based remote access Trojans, known as jRATs, targeting tax filers with attachments named “IRS Updates.jar” and “ImportantPDF.jar” that, if executed, give attackers access to compromised endpoints. Zscaler, which is tracking the jRATs, believes some of the campaigns cou...

PoshC2 - Powershell C2 Server and Implants

PoshC2 is a proxy aware C2 framework written completely in PowerShell to aid penetration testers with red teaming, post-exploitation and lateral movement. The tools and modules were developed off the back of our successful PowerShell sessions and payload types for the Metasploit Framework...

Cerber: Analyzing a Ransomware Attack Methodology To Enable Protection

Ransomware is a common method of cyber extortion for financial gain that typically involves users being unable to interact with their files, applications or systems until a ransom is paid. Accessibility of cryptocurrency such as Bitcoin has directly contributed to this ransomware model. Based on...

RuMMS: The Latest Family of Android Malware Attacking Users in Russia Via SMS Phishing

Introduction Recently we observed an Android malware family being used to attack users in Russia. The malware samples were mainly distributed through a series of malicious subdomains registered under a legitimate domain belonging to a well-known shared hosting service provider in Russia. Because...

RuMMS: The Latest Family of Android Malware Attacking Users in Russia Via SMS Phishing

Introduction Recently we observed an Android malware family being used to attack users in Russia. The malware samples were mainly distributed through a series of malicious subdomains registered under a legitimate domain belonging to a well-known shared hosting service provider in Russia. Because...

Rovnix Variant Surfaces With New DGA

Researchers have unearthed a new version of the Rovnix malware that has a couple of additional features, including a new domain generation algorithm and a secure transmission channel for communicating with the command-and-control servers. Rovnix is a malware variant that often has been distribute...

Salesforce Warns Customers of Dyreza Banker Trojan Attacks

Salesforce.com is warning its customers that the Dyreza banker Trojan is now believed to be targeting some of the company’s users. The Trojan, which has the ability to bypass SSL, typically goes after customers of major banks, but seems to be expanding its reach. Dyreza is relatively new among th...

DGA Changer Malware Able to Modify Domain-Generation Seed on the Fly

Malware authors have been using domain-generation algorithms for a few years now, often in botnet-related malware that needs to stay one step ahead of takedown attempts and law enforcement agencies. Now, researchers have discovered that a strain of malware that may have been part of the attack in...

Skype Malware Stealing Victims' Processing Power to Mine Bitcoins

Bitcoin may still be a virtual unknown quantity for most people, but the digital currency has not escaped the notice of attackers, many of whom are turning their attention to finding ways to use the system for their own gains. The attacks against Bitcoin exchange Mt. Gox and hack of Instawallet...

Spear Phishing Campaigns Use Fake Mandiant APT1 Report as Lure

People looking to download and read the Mandiant report on Chinese government attacks on U.S. infrastructure should look carefully at the name of the file before opening it. Researchers say that there are at least two different spear-phishing attacks going on right now that are using rigged copie...