MythicRatatoskr is a Go-based backdoor leveraging the Yggdrasil mesh network for encrypted, decentralized command and control communications. It was deployed in a coordinated attack involving UAC-0099 and Sandworm targeting a Ukrainian grain logistics company in mid-2025. The backdoor provides typical malicious capabilities such as command execution, file transfer, screenshot capture, and SOCKS5 proxying. The attack sequence included initial access via spearphishing, backdoor deployment, and a subsequent destructive data-wiping phase using SDelete via Active Directory Group Policy. This incident marks the first known use of Yggdrasil by state-aligned threat actors for C2 communications.
StealC malware has resurfaced as Stadia, a remote access trojan (RAT) that incorporates StealC's original code. Stadia extends capabilities beyond simple data theft to include hidden desktop control, live command shell, file management, process management, and in-memory loading. It communicates via plain HTTP to hardcoded IPs using RC4 encryption with Base64 encoding and persists through hidden scheduled tasks in randomized directories mimicking legitimate updaters. The operator targets former StealC customers with subscription offers. No official patches or fixes are available, and no known exploits in the wild have been reported.
A memory corruption vulnerability exists in the web-based management interface of AOS-8. Successful exploitation could allow an authenticated low privilege attacker with local access to view some system files and interrupt the normal operation of the affected service.
A buffer overflow vulnerability exists in AOS-8 that could allow an authenticated attacker with administrative access to cause denial of service. Successful exploitation could allow an attacker to crash the system, preventing it from rebooting without manual intervention and disrupting network operations.
An arbitrary file deletion vulnerability exists in the command line interface of AOS-10 that could allow an authenticated attacker with administrative privileges to cause a denial of service. Successful exploitation could allow an attacker to crash the system, preventing it from rebooting without manual intervention and disrupting normal operation of the affected device.
An authentication bypass vulnerability in the PAPI protocol of AOS-8 could allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to make limited unauthorized modifications to certain settings of the affected system.
A stored cross-site scripting (XSS) vulnerability exists in the web-based management interface of AOS that could allow an authenticated remote attacker with high privileges to inject malicious scripts. Successful exploitation could allow an attacker to execute arbitrary script code in the context of another authenticated user's browser session.
An authentication bypass in the PAPI protocol of AOS-10 allows an unauthenticated adjacent attacker to circumvent existing authentication controls. Successful exploitation allows an attacker to change the state of certain settings of a vulnerable system.
An unauthenticated command injection vulnerability exists in the command line interface of AOS-10. Successful exploitation could allow an attacker with physical access to execute arbitrary commands as a privileged user on the underlying operating system leading to complete system compromise.
A buffer overflow vulnerability exists in the API of AOS-10 that could allow an authenticated adjacent attacker with high privileges to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system.
An unauthenticated buffer overflow vulnerability exists in the command line interface of AOS-8. Successful exploitation could allow an unauthenticated remote attacker to disrupt the availability of the affected interface, along with limited access to or modification of some system data.
A sensitive information disclosure vulnerability in the PAPI protocol of AOS-8 could allow an unauthenticated adjacent attacker to access limited information handled by the affected service. Successful exploitation could allow an attacker to view some information and to disrupt the availability of the affected service.
An authentication bypass vulnerability in the web-based management interface of AOS-10 could allow an unauthenticated adjacent attacker to circumvent existing authentication controls and run arbitrary commands on the underlying host if certain preconditions outside of the attacker's control are met. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary commands on the underlying operating system.
An unauthenticated buffer overflow vulnerability exists in the underlying operating system of AOS-10 or AOS-8 and could allow an unauthenticated adjacent attacker to conduct a denial of service attack. Successful exploitation could allow an attacker to disrupt the availability of the affected system, with a limited impact to the integrity of the affected component.
Command injection vulnerabilities exist in the affected interface of AOS-10 that could allow an authenticated remote attacker with high privileges to perform command injection. Successful exploitation could allow an attacker to execute arbitrary commands as a privileged user on the underlying operating system.
Command injection vulnerabilities exist in the affected interface of AOS-10 that could allow an authenticated remote attacker with high privileges to perform command injection. Successful exploitation could allow an attacker to execute arbitrary commands as a privileged user on the underlying operating system.
A buffer overflow vulnerability in the PAPI protocol of AOS-8 could allow an authenticated remote attacker with high privileges to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system.
Command injection vulnerabilities in the affected interface of AOS-8 could allow an authenticated remote attacker with high privileges to perform command injection. Successful exploitation could allow an attacker to execute commands with the privileges of the impacted mechanism on the underlying operating system.
Command injection vulnerabilities in the affected interface of AOS-8 could allow an authenticated remote attacker with high privileges to perform command injection. Successful exploitation could allow an attacker to execute commands with the privileges of the impacted mechanism on the underlying operating system.
A vulnerability in the web-based management interface of wireless network management systems could allow an authenticated remote attacker to execute remote code. Successful exploitation could enable an attacker to execute arbitrary commands on the underlying operating system, potentially compromising system integrity and data security.
