New Linux-Based Ransomware Cheerscrypt Targets ESXi Devices
Trend Micro Research detected “Cheerscrypt”, a new Linux-based ransomware variant that compromises ESXi servers. We discuss our initial findings in this report.
Large-scale Analysis of DNS-based Tracking Evasion - broad data leaks included?
User tracking technologies are ubiquitous on the web. In recent times web browsers try to fight abuses. This led to an arms race where new tracking and anti-tracking measures are being developed. The use of one of such evasion techniques, the CNAME cloaking technique is recently quickly gaining popularity. Our evidence indicates that the use of the CNAME scheme threatens web security and privacy systematically and in general
The IO Offensive: Information Operations Surrounding the Russian Invasion of Ukraine
New Mandiant research detailing the various IO activities seen by nation-state actors, resulting from the Russian invasion of Ukraine.
Exploiting an Unbounded memcpy in Parallels Desktop
This post details the development of a guest-to-host virtualization escape for Parallels Desktop on macOS, as used in our successful Pwn2Own 2021 entry. Give...
Multi-factor Authentication to Generate $27 Billion Globally for Mobile Operators in 2022, Juniper Research Study Finds
A new study by Juniper Research has found operators will generate $27 billion from the termination of SMS messages related to multi-factor authentication in 2022; an increase from $25 billion in 2021. The research predicts this 5% growth will be driven by increased pressure on digital service providers to offer secure authentication that reduces risk of data breaches and protects user identity. Multi-factor authentication combines multiple credentials to verify a user or transaction. This includes sending an SMS that contains a one‑time password or code to a user’s unique phone number.
Web ad firms scrape email addresses before you know it
Tracking, marketing, and analytics firms have been exfiltrating the email addresses of internet users from web forms prior to submission and without user consent, according to security researchers.
npm Supply Chain Attack Targeting Germany-Based Companies
The JFrog Security Research team identified and quickly disclosed new npm malicious packages aimed at compromising leading industrial organizations
Industroyer2: Industroyer reloaded
ESET researchers have responded to a cyber-incident that affected an energy provider in Ukraine and involved ICS-capable malware called Industroyer2.
MacOS SUHelper Root Privilege Escalation Vulnerability A Deep Dive Into CVE-2022-22639
We discovered a now-patched vulnerability in macOS SUHelper, designated as CVE-2022-22639. If exploited, the vulnerability could allow malicious actors to gain root privilege escalation.
DEV-0537 criminal actor targeting organizations for data exfiltration and destruction
The activity we have observed has been attributed to a threat group that Microsoft tracks as DEV-0537, also known as LAPSUS$. DEV-0537 is known for using a pure extortion and destruction model without deploying ransomware payloads.
Gas Is Too Expensive; Let’s Make It Cheap!
A search online lead me to a discovery I didn’t think was possible nowadays. I realized almost immediately that critical security issues were probably involved. I found that out of the many tens of thousands of gas stations the company claimed to have installed their product in, 1,000 are remotely hackable.
Raccoon Stealer: “Trash panda” abuses Telegram
We recently came across a stealer, called Raccoon Stealer, a name given to it by its author. Raccoon Stealer uses the Telegram infrastructure to store and update actual C&C addresses. Raccoon Stealer is a password stealer capable of stealing not just passwords, but various types of data, including: Cookies, saved logins and forms data from […]
Iranian linked conglomerate MuddyWater comprised of regionally focused subgroups
Cisco Talos has observed new cyber attacks targeting Turkey and other Asian countries we believe with high confidence are from groups operating under the MuddyWater umbrella of APT groups. U.S. Cyber Command recently connected MuddyWater to Iran's Ministry of Intelligence and Security (MOIS).
Weaponizing Middleboxes for TCP Reflected Amplification
Geneva is a genetic algorithm that automatically learns how to evade nation state censors.
Accidentally Crashing a Botnet
As part of our research into the cryptomining botnet kmsdbot, we rendered it useless.
Supply Chain Vulnerabilities Put Server Ecosystem At Risk
BMC&C Eclypsium Research has discovered and reported 3 vulnerabilities in American Megatrends, Inc. (AMI) MegaRAC Baseboard Management Controller (BMC) software. We are referring to these vulnerabilities collectively as BMC&C. MegaRAC BMC is widely used by many leading server manufacturers to provide “lights-out” management capabilities for their server products. Server manufacturers…
Wi-Spy
The Wi-Peep exploit allows an attacker to covertly locate all of the Wi-Fi-enabled devices in a building quickly using inexpensive hardware.
Black Basta Ransomware | Attacks Deploy Custom EDR Evasion Tools Tied to FIN7 Threat Actor
Black Basta operational TTPs are described here in full detail, revealing previously unknown tools and techniques and a link to FIN7.
Banking Trojan Techniques: Financially Motivated Malware
Understanding banking Trojan techniques can help detect other activities of financially motivated threat groups.
LV Ransomware Exploits ProxyShell in Attack on a Jordan-based Company
Our blog entry provides a look at an attack involving the LV ransomware on a Jordan-based company from an intrusion analysis standpoint
Unattributed RomCom Threat Actor Spoofing Popular Apps Now Hits Ukrainian Militaries
Threat actor RomCom RAT is now targeting Ukrainian military institutions. Known to deploy spoofed versions of popular software Advanced IP Scanner, once exposed, RomCom RAT switched to PDF Filler, another popular application, which indicates the group behind it is actively developing new capabilities.
Domestic Kitten campaign spying on Iranian citizens with new FurBall malware
ESET researchers recently identified a new version of the Android malware FurBall being used in a Domestic Kitten campaign conducted by the APT-C-50 group. The Domestic Kitten campaign is known to conduct mobile surveillance operations against Iranian citizens and this new FurBall version is no different in its targeting. Since June 2021, it has been distributed as a translation app via a copycat of an Iranian website that provides translated articles, journals, and books. The malicious app was uploaded to VirusTotal where it triggered one of our YARA rules (used to classify and identify malware samples), which gave us the opportunity to analyze it.
SafeBreach Uncovers Fully Undetectable Powershell Backdoor
See how this tool—created by a sophisticated and seemingly unknown threat actor—uses the unique approach of disguising itself as part of a Windows update.
On Bypassing eBPF Security Monitoring
There are many security solutions available today that rely on the Extended Berkeley Packet Filter (eBPF) features of the Linux kernel to monitor kernel functions. Such a paradigm shift in the latest monitoring technologies is being driven by a variety of reasons
Black Basta Ransomware Gang Infiltrates networks via QAKBOT, Brute Ratel, and Cobalt Strike
We analyzed a QAKBOT-related case leading to a Brute Ratel C4 and Cobalt Strike payload that can be attributed to the threat actors behind the Black Basta ransomware.
POLONIUM targets Israel with Creepy malware
ESET researchers analyzed previously undocumented custom backdoors and cyberespionage tools deployed in Israel by the POLONIUM APT group.
The Majority of PostgreSQL Servers on the Internet are Insecure
At most 15% of the approximately 820,000 PostgreSQL servers listening on the Internet require encryption. In fact, only 36% even support encryption. This puts PostgreSQL servers well behind the rest of the Internet in terms of security. In comparison, according to Google, over 96% of page loads in Chrome on a Mac are encrypted. The top 100 websites support encryption, and 97 of those default to encryption.
A glimpse into the shadowy realm of a Chinese APT: detailed analysis of a ShadowPad intrusion – NCC Group Research
This post explores some of the TTPs employed by a threat actor who was observed deploying ShadowPad during an incident response engagement.
Slack’s and Teams’ Lax App Security Raises Alarms
New research shows how third-party apps could be exploited to infiltrate these sensitive workplace tools.
So RapperBot, What Ya Bruting For?
In June 2022, FortiGuard Labs encountered IoT malware samples with SSH-related strings, something not often seen in other IoT threat campaigns. What piqued our interest more was the size of the code referencing these strings in relation to the code used for DDoS attacks, which usually comprises most of the code in other variants.