Ids.xls

This paper demonstrates that a simple statistical analysis of ids.xls can uncover meaningful intrusion patterns. The identified rules (ICMP size, RSTO flag, port 445 bursts) can be integrated into signature-based IDS rules (e.g., Snort). Future work should apply machine learning (Random Forest, XGBoost) to this dataset to improve classification accuracy.

HR departments often export user IDs from HRIS systems into Excel for processing. An ids.xls list of new employee IDs is often sent to IT to create network accounts.

Based on forensic analysis of data breaches and internal IT audits, an ids.xls file usually contains one or more of the following columns: ids.xls

| Column Name | Description | Risk Level | | :--- | :--- | :--- | | User_ID | Internal employee or customer login ID | Medium | | SSN | Social Security Numbers (or national IDs) | Critical | | Passport_Num | Government-issued passport numbers | High | | Credit_Card_Token | Partial or full credit card data | Critical | | Patient_ID | Medical record numbers (PHI) | High | | Student_ID | University or school identifiers | Low-Medium |

Use file server scanning or EDR (Endpoint Detection and Response) tools to locate every instance of ids.xls across your network. Run: This paper demonstrates that a simple statistical analysis

# Linux/macOS example
find / -name "ids.xls" 2>/dev/null

Or in Windows PowerShell:

Get-ChildItem -Path C:\ -Filter ids.xls -Recurse -ErrorAction SilentlyContinue

Once migrated or encrypted, delete the original ids.xls securely. Simple deletion is not enough—data can be recovered. Or in Windows PowerShell: Get-ChildItem -Path C:\ -Filter

Windows (Cipher command):

cipher /w:C:\folder\containing\ids

Linux (shred command):

shred -u -z -n 7 ids.xls

IT departments frequently maintain an ids.xls file as a simple database of hardware identifiers. Columns might include: