Posts created by: Brad Duncan

As a Threat Intelligence Analyst for Palo Alto Networks Unit 42, I often use Wireshark to review packet captures (pcaps) of network traffic generated by malware samples. To better accomplish this work, I use a customized Wireshark column display as described my previous blog about using Wireshark. Today’s post provides more tips for analysts to

Unit 42 investigates a recent Fake Flash update pushing cryptocurrency mining software. Get the full report.

Unit 42 shares a lesson on customizing Wireshark to better meet security researcher needs.

Unit 42 examines Emotet and Trickbot, best known as banking malware and information stealers targeting Windows-based computers.

What a difference a year makes! As the dominant exploit kit (EK) in our current threat landscape, Rig EK has gone through significant changes. How much has Rig EK changed? In order to find out, we compared activity levels, malware payloads, and network traffic characteristics from January of 2017 with January of 2018. The contrast

Unit 42 tracks how attackers use fraudulent accounts and compromise infrastructures of legitimate businesses to deliver Hancitor malware.

Unit 42 investigates Boleto Mestre, a malspam campaign impersonating invoice documents of a popular Brazilian payment method.

Unit 42 uncovers HoeflerText popups delivering RAT malware to Google Chrome users.

Unit 42 examines the evolution of malspam targeting Microsoft windows hosts in Brazil.

Unit 42 investigates recent developments in the EITest & pseudo-Darkleech campaigns contributing to the decline of Rig exploit kits.

Unit 42 identifies a new malicious spam campaign using United States Postal Service themed emails redirecting to fake Microsoft Word online sites.

Unit 42 discovers malspam campaign using hosting providers to spread ransomware.

EITest is a name originally coined by Malwarebytes Labs in 2014 to describe a campaign that uses exploit kits (EKs) to deliver malware. Until early January 2016, “EITest” was used as a variable name in the attacker’s malicious injected script in pages on legitimate websites compromised by this campaign. While the variable name is gone,

Darkleech is long-running campaign that uses exploit kits (EKs) to deliver malware. First identified in 2012, this campaign has used different EKs to distribute various types of malware during the past few years. We reviewed the most recent iteration of this campaign in March 2016 after it had settled into a pattern of distributing ransomware.

EITest is a long-running campaign that uses exploit kits (EKs) to distribute a variety of malware. This campaign was first identified in October 2014, and we reviewed how the EITest campaign evolved in a March 2016 blog post. In this blog post, I’ll give an update of how the EITest campaign has evolved since March