Malwarecritical
European firm DSIRF behind the attacks with Subzero surveillance malware
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2021-28550 | Use-After-Free RCE in Adobe Acrobat and Reader | 8.8 | 52% | KEV | KEV |
CVE-2021-31199+1 related CVE | Elevation of Privilege in Microsoft Enhanced Cryptographic Provider (Windows) | 5.2 | 3% | KEV | KEV |
| CVE-2021-36948 | Privilege Escalation in Microsoft Windows Update Medic Service | 7.8 | 23% | KEV | KEV |
| CVE-2022-22047 | Local Privilege Escalation in Windows CSRSS Affects Nearly All Windows Versions | 7.8 | 19% | KEV | KEV |
Indicators of compromise
auto-extracted · verify before use · export allAll| Type | Indicator | Context |
|---|---|---|
| domain | vultrobjects.com | o download KNOTWEED tooling from public file shares such as vultrobjects[.]com Running PowerShell scripts directly from a GitHub gist cr |
From the original article
4 min read at securityaffairs.com
Microsoft linked a private-sector offensive actor (PSOA) to attacks using multiple zero-day exploits for its Subzero malware. The Microsoft Threat Intelligence Center (MSTIC) and the Microsoft Security Response Center (MSRC) researchers linked a threat group known as Knotweed to an Austrian surveillance firm named DSIRF, known for using multiple Windows and Adobe zero-day exploits.
By @securityaffairs · securityaffairs.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.