The detection identifies potential troystealer malware activity through known IOCs, indicating an adversary may be exfiltrating sensitive data from compromised systems. SOC teams should proactively hunt for this behavior in Azure Sentinel to detect and mitigate data theft early in the attack lifecycle.
IOC Summary
Malware Family: troystealer Total IOCs: 6 IOC Types: sha1_hash, sha256_hash, md5_hash
| Type | Value | Threat Type | First Seen | Confidence |
|---|---|---|---|---|
| sha1_hash | 8df2a2834beb8e7f61290ad647a943b76d37a7e9 | payload | 2026-06-14 | 95% |
| md5_hash | 4fb1d95832b2daa5125f7ff2e618df0b | payload | 2026-06-14 | 95% |
| sha256_hash | b90911b23eee913a11dc19e983910497c3822f2c0f12722672cb790cadf3f4fa | payload | 2026-06-14 | 95% |
| md5_hash | a59021e930e4788c1f8ad670d63b00ba | payload | 2026-06-14 | 95% |
| sha256_hash | 7d33c40bde71d7b366335c81ce63e834d6295db5a5b9aaaa179c0a1f782714ce | payload | 2026-06-14 | 95% |
| sha1_hash | dbfec091c4ca2cf728c090075130705b33f678e6 | payload | 2026-06-14 | 95% |
// Hunt for files matching known malicious hashes
// Source: ThreatFox - troystealer
let malicious_hashes = dynamic(["8df2a2834beb8e7f61290ad647a943b76d37a7e9", "4fb1d95832b2daa5125f7ff2e618df0b", "b90911b23eee913a11dc19e983910497c3822f2c0f12722672cb790cadf3f4fa", "a59021e930e4788c1f8ad670d63b00ba", "7d33c40bde71d7b366335c81ce63e834d6295db5a5b9aaaa179c0a1f782714ce", "dbfec091c4ca2cf728c090075130705b33f678e6"]);
DeviceFileEvents
| where SHA256 in (malicious_hashes) or SHA1 in (malicious_hashes) or MD5 in (malicious_hashes)
| project Timestamp, DeviceName, FileName, FolderPath, SHA256, InitiatingProcessFileName
| order by Timestamp desc| Sentinel Table | Notes |
|---|---|
DeviceFileEvents | Ensure this data connector is enabled |
Scenario: Legitimate scheduled job running TroysTee or similar tool
Description: A scheduled job is configured to run a legitimate tool like TroysTee or Troy for internal monitoring or data collection.
Filter/Exclusion: Exclude processes with command_line containing TroysTee or Troy and associated with a known internal monitoring tool.
Scenario: Admin task using PowerShell to gather system information
Description: An administrator is using PowerShell to collect system information via Get-EventLog or Get-WmiObject, which may match IOC patterns.
Filter/Exclusion: Exclude processes with process_name powershell.exe and command_line containing Get-EventLog or Get-WmiObject.
Scenario: Legitimate software update process
Description: A legitimate software update process is downloading a file that matches a known IOC for TroysTee.
Filter/Exclusion: Exclude files with file_name matching known update packages (e.g., update.exe, patch.exe) and associated with a trusted vendor.
Scenario: System diagnostic tool executing a script
Description: A system diagnostic tool like Sysinternals or Process Explorer is executing a script that matches the detection logic.
Filter/Exclusion: Exclude processes with process_name ProcessExplorer.exe or Procmon.exe and command_line containing script execution commands.
Scenario: Internal tool for endpoint monitoring
Description: An internal endpoint monitoring tool is using a script or binary that matches the IOC pattern for TroysTee.
Filter/Exclusion: Exclude processes with process_name matching internal monitoring tools (e.g., MonitorAgent.exe, EndpointMonitor.exe) and command_line containing known