TAU Threat Analysis: Relations to Hakbit Ransomware

See part one of TAU's Hakbit Ransomware analysis here. Many blue team defenders out there will attest to the fact that ransomware is on the rise, and that ransomware doesn’t appear to be going away any time soon. Ransomware is only one of the numerous types of commodity-based emerging threats whi...

Threat Source newsletter for June 4, 2020

Newsletter compiled by Jon Munshaw. Our social media content and promotion are on pause this week as there are more important issues being discussed and other voices that need to be heard. However, we still wanted to provide users with the latest IOCs and threats we’re seeing. Upcoming public...

Maze Ransomware Attack Hits Cognizant

IT services giant Cognizant said that it has been hit by the Maze ransomware group in a cyberattack that has caused service disruptions. Cognizant, a Fortune 500 company that employs close to 300,000 people, said that it is providing customers with indicators of compromise IoCs and other technica...

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

A new enterprise targeting ransomware named ‘SNAKE’ was recently discovered. Similar to the other variants of ransomware, it will stop numerous processes or services such as antivirus software and perform the deletion of volume shadow copies to ensure all the data cannot be restored easily. After...

Threat Roundup for January 17 to January 24

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Jan. 17 and Jan. 24. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics...

Exploit for Path Traversal in Citrix Application_Delivery_Controller_Firmware

Based on a Splunk perspective. Below resources show that ing...

Exploit for Path Traversal in Citrix Application_Delivery_Controller_Firmware

CVE-2019-19781IOCs IOCs for CVE-2019-19781 citrixhoneypotnsl...

Threat Analysis Unit (TAU) Threat Intelligence Notification: BlackRemote RAT

BlackRemote is a relatively new commodity RAT discovered in September 2019. Similar to other Remote Access Trojans, it offers typical functionality such as keylogging, remote desktop, file transfer, credential harvesting, and more. Despite the discovery of this RAT being caught early, and while t...

Threat Roundup for November 1 to November 8

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Nov. 1 and Nov. 8. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics,...

How adversaries use politics for compromise

By Nick Biasini and Edmund Brumaghin. Executive Summary With the U.S. presidential primaries just around the corner, even malware authors can't help but get behind the frenzy. Cisco Talos recently discovered several malware distribution campaigns where the adversaries were utilizing the names and...

ThreatIngestor - Extract And Aggregate Threat Intelligence

An extendable tool to extract and aggregate IOCs from threat feeds. Integrates out-of-the-box with ThreatKB and MISP, and can fit seamlessly into any existing worflow with SQS, Beanstalk, and custom plugins. Overview ThreatIngestor can be configured to watch Twitter, RSS feeds, or other sources,...

ACSC Releases Advisory on Emotet Malware Campaign

The Australian Cyber Security Centre ACSC has released an advisory on an ongoing, widespread Emotet malware campaign. Emotet is a Trojan—commonly spread via malicious email attachments—that attempts to proliferate within a network by brute forcing user credentials and writing to shared drives. AC...

Threat Roundup for October 4 to October 11

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Oct. 4 and Oct. 11. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics,...

CB TAU Threat Intelligence Notification: Winnti Malware 4.0

Winnti is a family of malware used by multiple Chinese threat actors like APT41. Carbon Black’s Threat Analysis Unit TAU is providing this technical analysis, YARA rules, IOCs and product rules for the research community. Behavioral Summary Winnti malware is installed manually with stolen...

CB TAU Threat Intelligence Notification: State-Sponsored Espionage Group Targeting Multiple Verticals with ‘Crosswalk’

FireEye recently reported on APT41, a Chinese state-sponsored espionage group. The group has been documented as targeting healthcare, high-tech, and telecommunications companies for traditional corporate espionage purposes. Additionally this group has also targeted companies in the video game...

CB TAU Threat Intelligence Notification: GermanWiper Ransomware

GermanWiper Ransomware was found distributed via spam email campaign in Germany. It’s a data-wiping malware and the ransom note was written in German language. The malware pretends to be ransomware but is actually a wiper that destroys the data instead of encrypting it. Figure 1: Screenshot of th...

CB TAU Threat Intelligence Notification – Karagany Malware

Secureworks recently reported in regards to an update of Karagany malware last month. The malware is used by the IRON LIBERTY threat group also known as DragonFly2.0 and Energetic Bear, targeting energy companies and organizations. Carbon Black Threat Analysis Unit TAU provides the product rules ...

Lessons Learned from the Incident Response Trenches: Investigating and Eradicating Kwampirs

Kroll has deployed CB Response during hundreds of cyber investigations because it can provide insights throughout each stage of the incident response IR process see graphic. One of Kroll’s recent investigations, which involved the Kwampirs malware, illustrates how CB Response helps uncover critic...

Threat Roundup for July 5 to July 12

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 5 and July 12. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics,...

CB TAU Threat Intelligence Notification: SEON Ransomware Distributed via Drive-By Attack Campaign

SEON Ransomware ver 0.2 was found being distributed by the GreenFlash Sundown exploit kit via a drive-by-attack campaign. After performing the encryption, SEON will drop and display the following ransom note and append ‘.fixt’ as the extension to the encrypted file. Figure 1: Screenshot of the...