By Securonix Threat Labs, Threat Research: D. Iuzvyk, T. Peck, O. Kolesnikov
IntroductionA recently released critical vulnerability for Apache Commons Text library is currently being exploited in the wild. The Apache Commons project provides a large number of Java-based utilities and packages for a wide range of applications.…
In early June 2022, we observed an intrusion where a threat actor gained initial access by exploiting the CVE-2022-30190 (Follina) vulnerability which triggered a Qbot infection chain.
Qbot, also known as Qakbot or Pinksliplot is actively developed and capable of a number of functions from reconnaissance, lateral movement, data exfiltration, to delivering other payloads acting as an initial access broker.…
Code signing certificates help us assure the file’s validity and legitimacy. However, threat actors can use that against us. In this blog, discover how QAKBOT use such tactic and learn ways how to prevent it.
A threat actor, QAKBOT, along with EMOTET, has been one of the most active threat actors over the past few years, with numerous reports regarding its actions since it was first observed in 2007.…
In the ASEC blog post uploaded on April 2022 (New Malware of Lazarus Threat Actor Group Exploiting INITECH Process, https://asec.ahnlab.com/en/33801/), the team discussed the fact that the Lazarus attack group had been exploiting the INITECH process to infect systems with malware.
This article aims to cover the details of the Lazarus group using the watering hole technique to hack into systems before exploiting the vulnerability of the MagicLine4NX product from Dream Security in order to additionally hack into systems in the internal network, and also using vulnerable drivers to disable anti-malware software.…
Our blog entry provides a look at an attack involving the LV ransomware on a Jordan-based company from an intrusion analysis standpoint
OverviewThe Trend Micro research team recently analyzed an infection related to the LV ransomware group, a ransomware as a service (RaaS) operation that has been active since late 2020, and is reportedly based on REvil (aka Sodinokibi).…
In April, VMware patched a vulnerability CVE-2022-22954. It causes server-side template injection because of the lack of sanitization on parameters “deviceUdid” and “devicetype”. It allows attackers to inject a payload and achieve remote code execution on VMware Workspace ONE Access and Identity Manager. FortiGuard Labs published Threat Signal Report about it and also developed IPS signature in April.…
On October 17, 2022, the Wordfence Threat Intelligence team began monitoring for activity targeting CVE-2022-42889, or “Text4Shell” on our network of 4 million websites. We started seeing activity targeting this vulnerability on October 18, 2022.
Text4Shell is a vulnerability in the Apache Commons Text library versions 1.5 through 1.9 that can be used to achieve remote code execution.…
The Wordfence Threat Intelligence team has been monitoring exploit attempts targeting two zero-day vulnerabilities in Microsoft Exchange Server tracked as CVE-2022-41040 and CVE-2022-41082, collectively known as ProxyNotShell. These vulnerabilities are actively being exploited in the wild. At the time of writing, we have observed 1,658,281 exploit attempts across our network of 4 million protected websites.…
ESET-Forscher entdeckten und analysierten eine Reihe bösartiger Tools, die von der berüchtigten Lazarus APT-Gruppe bei Angriffen im Herbst 2021 eingesetzt wurden. Die Kampagne begann mit Spearphishing-E-Mails. Diese kamen in Form von gefälschten Amazon-Mails und zielten auf einen Mitarbeiter eines Luft- und Raumfahrtunternehmens in den Niederlanden und einen politischen Journalisten in Belgien ab.…
Contributions from Matt Thaxton.
Cisco Talos discovered a new attack framework including a command and control (C2) tool called “Alchimist” and a new malware “Insekt” with remote administration capabilities. The Alchimist has a web interface in Simplified Chinese with remote administration features. The attack framework is designed to target Windows, Linux and Mac machines.…In July of 2022 we reported on 8220 Gang, one of the many low-skill crimeware gangs we observe infecting cloud hosts through known vulnerabilities and remote access brute forcing infection vectors. We noted that 8220 Gang had expanded its cloud service botnet to an estimated 30,000 hosts globally.…
CVE-2021-44228 and CVE-2021-45105) to compromise the Apache Tomcat service on servers in order to install web shells. The attackers used Virtual Private Servers (VPS) hosted on Vultr and Telstra as command-and-control (C&C) servers.
Budworm’s main payload continues to be the HyperBro malware family, which is often loaded using a technique known as dynamic-link library (DLL) side-loading.…
FortiGuard Labs recently captured an Excel document with an embedded malicious file in the wild. The embedded file with a randomized file name exploits a particular vulnerability —CVE-2017-11882—to execute malicious code to deliver and execute malware on a victim’s device.
Part I of my analysis explained how this crafted Excel document exploits CVE-2017-11882 and what it does when exploiting that vulnerability.…
With reports of a new data-leak site published by actors behind the BlackByte ransomware, we decided to take another look at the most recent variant written in Go.
We found a sophisticated technique to bypass security products by abusing a known vulnerability in the legitimate vulnerable driver RTCore64.sys.…
The prevalence of malware written in Go programming language has increased dramatically in recent years due to its flexibility, low antivirus detection rates and difficulty to reverse-engineer. Black Lotus Labs, the threat intelligence arm of Lumen Technologies, recently uncovered a multifunctional Go-based malware that was developed for both Windows and Linux, as well as a wide array of software architectures used in devices ranging from small office/home office (SOHO) routers to enterprise servers.…
ESET researchers uncovered and analyzed a set of malicious tools that were used by the infamous Lazarus APT group in attacks during the autumn of 2021. The campaign started with spearphishing emails containing malicious Amazon-themed documents and targeted an employee of an aerospace company in the Netherlands, and a political journalist in Belgium.…
Sygnia recently investigated a Cheerscrypt ransomware attack which utilized Night Sky ransomware TTPs. Further analysis revealed that Cheerscrypt and Night Sky are both rebrands of the same threat group, dubbed ‘Emperor Dragonfly’ by Sygnia.
‘Emperor Dragonfly’ (A.K.A. DEV-0401 / BRONZE STARLIGHT) deployed open-source tools that were written by Chinese developers for Chinese users.…
CVE-2021-34473, CVE-2021-34523, and CVE-2021-31207) and ProxyLogon (CVE-2021-26855 and CVE-2021-27065) vulnerabilities to install web shells on public-facing servers before stealing credentials, moving laterally across networks, and installing malware on other computers.
Who is Witchetty?Witchetty was first documented by ESET in April 2022, who concluded that it was one of three sub-groups of TA410, a broad cyber-espionage operation with some links to the Cicada group (aka APT10).…
Editor’s Note: The following post is an excerpt of a full report. To read the entire analysis, click here to download the report as a PDF.
This report details multiple campaigns conducted by the likely Chinese state-sponsored threat activity group TA413. The activity was identified through a combination of large-scale automated network traffic analytics and expert analysis.…
Summary
The Federal Bureau of Investigation (FBI) and the Cybersecurity and Infrastructure Security Agency (CISA) are releasing this joint Cybersecurity Advisory to provide information on recent cyber operations against the Government of Albania in July and September. This advisory provides a timeline of activity observed, from initial access to execution of encryption and wiper attacks.…