Newsletter compiled by Jon Munshaw.
Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week.
We’re all still trying to shake off the summer. Gone are the early Fridays, beach vacations and days by the pool. Turns out, attackers may be brushing the same things off. The ever-present Emotet went quiet over the summer, but it’s back now with a slew of new campaigns. While this may sound concerning, the same protections and coverage you’ve always used will keep you safe.
And, speaking of things that won’t stay down, cryptocurrency miners still aren’t going anywhere. We’ve discovered a new threat actor we’re calling “Panda” that is rapidly spreading miners, even as digital currencies decline in value.
This was also a busy week for vulnerability discovery. We’ve got three new vulnerability spotlights out: the Aspose PDF API, Atlassian’s Jira software and the AMD ATI Radeon line of graphics cards.
We also have our weekly Threat Roundup, which you can find on the blog every Friday afternoon. There, we go over the most prominent threats we’ve seen (and blocked) over the past week.
Event:“DNS on Fire” at Virus Bulletin 2019
**Location:**Novotel London West hotel, London, U.K.
**Date:**Oct. 2 - 4
**Speaker:**Warren Mercer and Paul Rascagneres
**Synopsis:**In this talk, Paul and Warren will walk through two campaigns Talos discovered targeted DNS. The first actor developed a piece of malware, named “DNSpionage,” targeting several government agencies in the Middle East, as well as an airline. During the research process for DNSpionage, we also discovered an effort to redirect DNSs from the targets and discovered some registered SSL certificates for them. The talk will go through the two actors’ tactics, techniques and procedures and the makeup of their targets.
** **Event: “It’s never DNS…It was DNS: How adversaries are abusing network blind spots” at SecTor **Location: **Metro Toronto Convention Center, Toronto, Canada **Date: **Oct. 7 - 10 **Speaker: **Edmund Brumaghin and Earl Carter **Synopsis: **While DNS is one of the most commonly used network protocols in most corporate networks, many organizations don’t give it the same level of scrutiny as other network protocols present in their environments. DNS has become increasingly attractive to both red teams and malicious attackers alike to easily subvert otherwise solid security architectures. This presentation will provide several technical breakdowns of real-world attacks that have been seen leveraging DNS for a variety of purposes such as DNSMessenger, DNSpionage, and more.
Title:Remote code execution vulnerability in some AMD Radeon cards**** **Description: **A line of AMD Radeon cards contains a remote code execution vulnerability in their ATIDXX64.DLL driver. AMD produces the Radeon line of hardware, which includes graphics cards and graphics processing units. This specific vulnerability exists on the Radeon RX 550 and the 550 Series while running VMWare Workstation 15. An attacker could exploit this vulnerability by supplying a malformed pixel shared inside the VMware guest operating system to the driver. This could corrupt memory in a way that would allow the attacker to gain the ability to remotely execute code on the victim machine. **Snort SIDs: 49978, 49979 (Written by Tim Muniz) **
****Title:Atlassian Jira service contains multiple vulnerabilities, including remote JavaScript execution
**Description:**Atlassian’s Jira software contains multiple vulnerabilities that could allow an attacker to carry out a variety of actions, including the disclosure of sensitive information and the remote execution of JavaScript code. Jira is a piece of software that allows users to create, manage and organize tasks and manage projects. These bugs could create a variety of scenarios, including the ability to execute code inside of Jira and the disclosure of information inside of tasks created in Jira, including attached documents.
**Snort SIDs:**50110, 50111 (Written by Amit Raut), 50114 (Written by Josh Williams)
SHA 256:7acf71afa895df5358b0ede2d71128634bfbbc0e2d9deccff5c5eaa25e6f5510
MD5: 4a50780ddb3db16ebab57b0ca42da0fb **Typical Filename: **xme64-2141.exe **Claimed Product: **N/A **Detection Name: W32.7ACF71AFA8-95.SBX.TG **
****SHA 256:26da22347f1d91f6ca56b7c47644a776b72251d3de11c90d9fd77556d5236f5e
**MD5:**f6f6039fc64ad97895142dc99554e971
**Typical Filename:**CSlast.gif
**Claimed Product:**N/A
**Detection Name:W32.26DA22347F-100.SBX.TG
** ****SHA 256:46b241e3d33811f7364294ea99170b35462b4b5b85f71ac69d75daa487f7cf08
**MD5:**db69eaaea4d49703f161c81e6fdd036f
**Typical Filename:**xme32-2141-gcc.exe
**Claimed Product:**N/A
**Detection Name:W32.46B241E3D3-95.SBX.TG
** ****SHA 256:093cc39350b9dd2630a1b48372abc827251a3d37bd88c35cea2e784359b457d7
**MD5:**3c7be1dbe9eecfc73f4476bf18d1df3f
**Typical Filename:**sayext.gif
**Claimed Product:**N/A
**Detection Name:W32.093CC39350-100.SBX.TG
** ****SHA 256:15716598f456637a3be3d6c5ac91266142266a9910f6f3f85cfd193ec1d6ed8b
**MD5:**799b30f47060ca05d80ece53866e01cc
**Typical Filename:**mf2016341595.exe
Claimed Product: N/A **Detection Name: **W32.Generic:Gen.22fz.1201