All Huntress Blog Posts

All Huntress Blog Posts

All things cybersecurity engaging and accessible - so you can stay ahead of hackers and boost your cybersecurity savviness.

Author: John Hammond
Threat Research
Rogue ScreenConnect Installations Across Unrelated Hosts Suggest Worm-Like Activity
Rogue ScreenConnect Installations Across Unrelated Hosts Suggest Worm-Like Activity

Huntress is tracking a pattern across multiple customer environments where rogue ScreenConnect clients repeatedly spawn the Windows Script Host to execute a series of four VBScript files.

Codex Red: Untangling a Linux Incident With an OpenAI Twist (Part 2)
Codex Red: Untangling a Linux Incident With an OpenAI Twist (Part 2)

A developer used OpenAI’s Codex to handle suspicious Linux activity, leading to unexpected outcomes found by Huntress SOC analysts during an investigation.

Codex Red: Untangling a Linux Incident With an OpenAI Twist (Part 1)
Codex Red: Untangling a Linux Incident With an OpenAI Twist (Part 1)

A Linux user's attempt to use OpenAI's Codex to troubleshoot and respond to malicious activity on their system complicated a subsequent DFIR investigation by the Huntress SOC because the AI-generated commands were flagged as suspicious, making it difficult to distinguish legitimate user actions from the two active threat actors.

Someone Else’s SIEM: A Threat Actor Abuses Another Free Trial
Someone Else’s SIEM: A Threat Actor Abuses Another Free Trial

A threat actor exploited SolarWinds Web Help Desk, then ran victim triage from a free Elastic Cloud SIEM trial. The infrastructure they left behind told us everything.

From a Fake AnyDesk Installer to MetaStealer
From a Fake AnyDesk Installer to MetaStealer

Learn how a fake AnyDesk installer led to a unique MetaStealer attack, highlighting how threat actors evolve ClickFix techniques beyond the classic playbook to steal credentials and files.

Wing FTP Server Remote Code Execution (CVE-2025-47812) Exploited in the Wild
Wing FTP Server Remote Code Execution (CVE-2025-47812) Exploited in the Wild

Huntress observed active exploitation of Wing FTP Server CVE-2025-47812 — a null byte and Lua injection flaw leading to root-level remote code execution. If you're running it, update now.

CVE-2025-30406 - Critical Gladinet CentreStack & Triofox Vulnerability Exploited In The Wild
CVE-2025-30406 - Critical Gladinet CentreStack & Triofox Vulnerability Exploited In The Wild

Huntress SOC received a zero-day exploitation alert on April 11, 2025 — and it pointed straight at a critical CentreStack and Triofox vulnerability. Here's the full investigation and what to do now.

April 14, 2025
Threat Advisory: Possible AnyDesk Stolen Code Signing Certificate
Threat Advisory: Possible AnyDesk Stolen Code Signing Certificate

An unexpected 48-hour maintenance period and a sudden certificate change sparked rumors that AnyDesk had been compromised. Huntress tracked the situation and updated with confirmed details as they emerged.

February 2, 2024
Qakbot Malware Takedown and Defending Forward
Qakbot Malware Takedown and Defending Forward

The FBI and international partners took down Qakbot's infrastructure in August 2023. Huntress celebrates the win and explains why defenders still need to stay sharp in the aftermath.

August 30, 2023
MOVEit Transfer Critical Vulnerability CVE-2023-34362 Rapid Response
MOVEit Transfer Critical Vulnerability CVE-2023-34362 Rapid Response

A critical zero-day in MOVEit Transfer was actively exploited before a CVE was even assigned. Huntress published rapid response guidance, YARA rules, and Sigma rules as the situation unfolded in real time.

June 1, 2023
3CX VoIP Software Compromise & Supply Chain Threats
3CX VoIP Software Compromise & Supply Chain Threats

The 3CX VoIP Desktop Application has been compromised to deliver malware via legitimate 3CX updates. Huntress has been investigating this incident and working to validate and assess the current supply chain threat to the security community.

March 30, 2023
Everything We Know About CVE-2023-23397
Everything We Know About CVE-2023-23397

CVE-2023-23397 is particularly dangerous because no user interaction is required. A malicious email arrives in Outlook and credential hashes are leaked before anyone reads it.

March 17, 2023
Veeam Backup & Replication CVE-2023-27532 Response
Veeam Backup & Replication CVE-2023-27532 Response

A critical Veeam Backup & Replication vulnerability is being actively exploited in the wild. Huntress found far more unpatched and publicly exposed hosts than expected. Here's what to patch and what to do right now.

March 13, 2023
Critical Vulnerability Disclosure: ConnectWise/R1Soft Server Backup Manager Remote Code Execution & Supply Chain Risks
Critical Vulnerability Disclosure: ConnectWise/R1Soft Server Backup Manager Remote Code Execution & Supply Chain Risks

CVE-2022-36537 in ConnectWise's R1Soft Server Backup Manager has been exploited to deploy backdoors on hundreds of servers. Huntress published the full technical disclosure. Here's what to do immediately.

October 31, 2022
New 0-Day Vulnerabilities Found in Microsoft Exchange
New 0-Day Vulnerabilities Found in Microsoft Exchange

Huntress began investigating new zero-day Microsoft Exchange vulnerabilities being actively exploited for remote code execution. Here's what the team found and what defenders need to do right now.

September 29, 2022