Threat Research
- Our Favorite Topics:
Breaking down a two-year run of Vivin’s cryptominers
1 min read
News Summary There is another large-scale cryptomining attack from an actor we are tracking as “Vivin” that has been active since at least November 2017. “Vivin” has consistently evolved over the past few years, despite having poor operational security and exposing key details of their campaign. By Andrew Windsor. Talos has identified a new threat […]
Threat Roundup for January 10 to January 17
1 min read
Today, Talos is publishing a glimpse into the most prevalent threats we’ve observed between Jan 10 and Jan 17. 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, indicators of compromise, and discussing how our customers are […]
JhoneRAT: Cloud based python RAT targeting Middle Eastern countries
1 min read
Today, Cisco Talos is unveiling the details of a new RAT we have identified we’re calling “JhoneRAT.” This new RAT is dropped to the victims via malicious Microsoft Office documents. The dropper, along with the Python RAT, attempts to gather information on the victim’s machine and then uses multiple cloud services: Google Drive, Twitter, ImgBB […]
New Snort rules protect against recently discovered Citrix vulnerability
1 min read
By Edmund Brumaghin, with contributions from Dalton Schaadt. Executive Summary Recently, the details of a critical vulnerability affecting Citrix Application Delivery Controller and Citrix Gateway servers were publicly disclosed. This vulnerability is currently being tracked using CVE-2019-19781. A public patch has not yet been released, however, Citrix has released recommendations for steps that affected organizations […]
Threat Roundup for January 3 to January 10
1 min read
Today, Talos is publishing a glimpse into the most prevalent threats we’ve observed between Jan 3 and Jan 10. 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, indicators of compromise, and discussing how our customers are […]
Continued Escalation of Tensions in the Middle East
1 min read
Cisco Talos works with many organizations around the world, monitoring and protecting against sophisticated threats every day. As such, we are watching the current state of events in the Middle East very closely for our customers and partners who may be impacted by the ongoing situation. We are continuing to evaluate potential threats and attack […]
Cisco ASA DoS Bug Attacked in Wild
1 min read
This post authored by Nick Biasini Cisco Talos has recently noticed a sudden spike in exploitation attempts against a specific vulnerability in our Cisco Adaptive Security Appliance (ASA) and Firepower Appliance. The vulnerability, CVE-2018-0296, is a denial-of-service and information disclosure directory traversal bug found in the web framework of the appliance. The attacker can use a specially […]
Threat Roundup for December 13 to December 20
1 min read
Today, Talos is publishing a glimpse into the most prevalent threats we’ve observed between Dec 13 and Dec 20. 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, indicators of compromise, and discussing how our customers are […]
Incident Response Lessons From Recent Maze Ransomware Attacks
1 min read
This post authored by JJ Cummings and Dave Liebenberg This year, we have been flooded with reports of targeted ransomware attacks. Whether it’s a city, hospital, large- or medium-sized enterprise — they are all being targeted. These attacks can result in significant damage, cost, and have many different initial infection vectors. Recently, Talos Incident Response has been engaged […]