TF-MAL-elf.acbackdoor
📛 Threat Title
Malware family: ACBackdoor
Description
ThreatFox malware family `elf.acbackdoor`. Printable name: ACBackdoor.
Indicators of Compromise (1)
Each indicator is enriched from the IOC database, threat-intel feed corroboration (Threat Hunt) and VirusTotal. Click one to expand.
domain
elf.acbackdoor
VT: VT base fetch failed: HTTPError: 429 Client Error: Too Many Requests for url: https://www.virustotal.com/api/v3/domains/elf.acbackdoor
IOC database
- Type
- domain
- Value
elf.acbackdoor- First seen
- Last seen
- Attached to this threat
- Appears in
- 1 threat
- Description
- Extracted from Threat TF-MAL-elf.acbackdoor
Threat Hunt — feed corroboration
Not present in any configured threat-intel feed.
Details From VirusTotal
VirusTotal: VT base fetch failed: HTTPError: 429 Client Error: Too Many Requests for url: https://www.virustotal.com/api/v3/domains/elf.acbackdoor
References (1)
- ThreatFox: IOCs for this family ThreatFox Malwares
Remediations (10)
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web:cybersecuritynews.com
Two sophisticated Linux rootkits are posing increasingly serious threats to network security by exploiting eBPF technology to hide their presence from traditional detection systems. BPFDoor and Symbiote, both originating from 2021, represent a dangerous class of malware that combines advanced kernel-level access with powerful evasion capabilities.
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web:media.defense.gov
Introduction Note: This Malware Analysis Report was originally published Dec. 4, 2025, to share indicators of compromise (IOCs) and detection signatures for BRICKSTORM malware . The Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), and Canadian Centre for Cyber Security (Cyber Centre) have updated this Malware Analysis Report three times.
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web:windowsforum.com
The emergence of RESURGE signals more than just another entry in a long line of malware threats. According to CISA, RESURGE contains advanced persistence features inherited from the SPAWNCHIMERA malware family—a group notorious for its ability to survive system reboots and avoid simplistic remediation .
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web:www.breachsense.com
Complete malware remediation now requires addressing both the infected endpoint and the stolen authentication data. Your malware incident response playbook must account for both.
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web:www.cisa.gov
It highlights technical approaches to uncovering malicious activity and includes mitigation steps according to best practices. The purpose of this report is to enhance incident response among partners and network administrators along with serving as a playbook for incident investigation.
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web:www.fortinet.com
FortiGuard Labs discovered new Symbiote and BPFDoor variants exploiting eBPF filters to enhance stealth through IPv6 support, UDP traffic, and dynamic port hopping for covert C2 communication.
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web:www.malwarebytes.com
Backdoor.Remcos is Malwarebytes' detection name for a family of Backdoor Trojans that allow remote access and control over the affected system.
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web:www.microsoft.com
A malware campaign uses WhatsApp messages to deliver VBS scripts that initiate a multi-stage infection chain. The attack leverages renamed Windows tools and cloud-hosted payloads to install MSI backdoors and maintain persistent access to compromised systems.
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web:www.ncsc.gov.uk
How to defend organisations against malware or ransomware attacks.
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web:www.researchgate.net
Prevention and detection of eBPF-based malware is also explored, with the goal of providing organizations or legitimate users of eBPF techniques to harden their systems against eBPF-based malware ...
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