# Security Incident Report - Malware Detection and Remediation

**Prepared by:** AZ Computer Guru LLC
**Prepared for:** Ace Portables
**Date:** 31 March 2026
**Report Reference:** ACE-SEC-2026-0331

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## Executive Summary

On 25 March 2026, our endpoint protection platform detected and automatically removed a malicious browser extension from a workstation belonging to Ace Portables. The threat was identified, quarantined, and deleted without user intervention. Additional preventative measures have been implemented across the managed environment to prevent recurrence.

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## Incident Details

| Field | Detail |
|-------|--------|
| **Date of Detection** | 25 March 2026, 11:15 |
| **Affected Machine User** | John |
| **Threat Classification** | Trojan.GenericKD.77292516 |
| **Threat Type** | Malware (Trojan) |
| **Affected File** | `background.js` (browser extension component) |
| **File Location** | Microsoft Edge browser extension directory |
| **Extension ID** | cfacibcmkcdppnkgennkfaepplpkblmp |
| **File SHA256 Hash** | B3F83B5EC4CFED5D93561B86B5A124FA88D2EA35491011D32CCDA3E385C036E1 |

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## Detection and Response

### Detection

The threat was identified by **Bitdefender GravityZone**, our enterprise endpoint detection and response (EDR) platform, during a scheduled on-demand scan task. The malicious file was a JavaScript component (`background.js`) operating within a Microsoft Edge browser extension.

### Automated Response

Bitdefender GravityZone automatically took the following action upon detection:

- **Action Taken:** File deleted
- **Detection Module:** Antimalware (On-Demand Scan)
- **Result:** Threat successfully removed from the system

### Additional Remediation Steps

The following manual remediation steps were performed by AZ Computer Guru LLC:

1. **Extension removal verified** - Confirmed the malicious browser extension was fully removed from Microsoft Edge, including all associated files and registry entries.
2. **Extension blocked at policy level** - The malicious extension (ID: `cfacibcmkcdppnkgennkfaepplpkblmp`) has been added to the GravityZone extension blocklist, preventing installation across all managed endpoints company-wide.
3. **Full system scan completed** - A comprehensive antimalware scan was conducted on the affected workstation to confirm no additional threats or residual malicious components remain.
4. **Browser data review** - Edge browser settings were reviewed and restored to safe defaults where necessary.
5. **Password reset recommended** - The affected user was advised to change passwords for all accounts accessed via the browser as a precautionary measure, with priority given to financial and email accounts.

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## Current System Status

**The affected workstation is confirmed CLEAN and free of malware.** Bitdefender GravityZone endpoint protection continues to actively monitor the system in real time with:

- Real-time file system protection (on-access scanning)
- Network attack defense
- Web threat protection
- Advanced anti-exploit technology
- Behavioral monitoring (Advanced Threat Control)

The GravityZone management console shows **no active threats** on the affected machine or any other Ace Portables endpoints.

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## Preventative Measures Implemented

| Measure | Scope | Status |
|---------|-------|--------|
| Malicious extension added to blocklist | All managed client endpoints | Complete |
| Full system scan on affected workstation | Affected machine | Complete - Clean |
| User advised to reset browser passwords | Affected user | Advised |
| Ongoing real-time endpoint monitoring | All Ace Portables endpoints | Active |

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## About Our Security Platform

AZ Computer Guru LLC utilises **Bitdefender GravityZone**, an enterprise-grade endpoint protection platform that provides:

- Multi-layered malware detection (signature, heuristic, behavioural, and machine learning)
- Real-time threat monitoring and automated response
- Centralised management and policy enforcement
- Regular definition updates and cloud-based threat intelligence

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## Conclusion

The malicious browser extension was detected promptly by our automated security systems, removed before any confirmed data exfiltration occurred, and blocked from future installation. The affected workstation has been verified clean and continues to be actively protected. No further action is required at this time.

Should the bank require any additional information, technical logs, or clarification, please do not hesitate to contact us.

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**AZ Computer Guru LLC**
Managed IT Services Provider

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*This report is confidential and intended solely for the use of Ace Portables and their financial institution.*
