To hide their activity in infected systems, APT groups resort to various techniques to bypass defenses. Most of these techniques are well known and detectable by both EPP solutions and EDR threat-monitoring and response tools.
In early 2024, while investigating ToddyCat-related incidents, Kaspersky researchers detected a suspicious file named version.dll in the temp directory on multiple devices. This 64-bit DLL, written in C++, turned out to be a complex tool called TCESB. Previously unseen in ToddyCat attacks, it is designed to stealthily execute payloads in circumvention of protection and monitoring tools installed on the device. Kaspersky products detect this tool as Trojan.Win64.ToddyCat.a, Trojan.Win64.ToddyCat.b.
Read more…
Source: Kaspersky
Sign up for our Newsletter
The latest news and insights delivered right to your inbox.
Related:
- Atomic macOS (AMOS) Stealer Activity
September 16, 2026
This article reviews an Atomic macOS (AMOS) stealer malware infection generated in a lab environment. While several sources have published articles analyzing AMOS stealer, the associated indicators constantly change. This article presents a snapshot of indicators seen in early August 2026 and is designed to help readers better understand AMOS stealer. AMOS stealer is an information ...
- NightEagle targets Russian companies
September 16, 2026
Over the past year, Kaspersky Global Emergency Response Team (GERT) has investigated several incidents involving the NightEagle group (APT-Q-95). This group has been active since at least 2023 and originally focused on organizations in Asia. Kaspersky researchers have now identified attacks by the group targeting businesses in Russia. This post examines both known and new ...
- Hackers publish thousands of drivers’ data after breaching Florida motor vehicle database
September 16, 2026
The ShinyHunters hacking group has published hundreds of thousands of files from a Florida state database of vehicles and driver information. The hackers said they published the stolen data on its leak site “because the victim did not pay a ransom or cooperate and comply” with the hackers’ demands. The hackers said they breached the database, ...
- CVE-2026-76461: Critical Cisco Secure Email Gateway Vulnerability Exploited in the Wild
September 15, 2026
On September 14, 2026, Cisco published a security advisory for CVE-2026-76461, a critical SQL injection vulnerability affecting Cisco AsyncOS Software for Cisco Secure Email Gateway. The vulnerability has a reported CVSS v3.1 base score of 9.8 and could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on an affected appliance. Cisco Secure ...
- Apple has addressed more than 260 CVEs across all of its operating systems, browsers, and other software products
September 15, 2026
Apple has addressed more than 260 CVEs across all of its operating systems, browsers, and other software products, marking the largest single patch cycle in Cupertino’s history. While this CVE count is hardly notable compared to some vendors – hello, Microsoft’s record-breaking 974 bugs disclosed earlier this month – it does set a company record for ...
- Iranian Cyber Targeting of Dissidents, Activists and Journalists
September 15, 2026
CHOSEN BRICK is a malware family that has been used to target individuals around the world including in the UK, US and the Netherlands from at least 2025. CHOSEN BRICK enables Iranian state cyber actors to collect information on a target’s contacts, emails and social media messages, which could enable tracking of their movements. Iran almost ...