HIGH 'Regsvr32 may have run code from an untrusted source' along with 3 other issues

NEW ID: #91 | Created: 2026-01-02 11:50:20
XDR Console
4
Alerts
1
Hosts
11
Files
0
Network
Incident Overview

'Regsvr32 may have run code from an untrusted source' along with 3 other issues generated by XDR BIOC and XDR Agent detected on host desktop-fnumv3u involving 2 users

4
2026-01-02 11:53
Unassigned
XDR BIOC, XDR Agent
Malware Collection Execution
Affected Hosts & Users
desktop-fnumv3u\user user
MITRE ATT&CK Mapping
TA0005 - Defense Evasion TA0006 - Credential Access TA0002 - Execution
T1003 - OS Credential Dumping T1218.010 - System Binary Proxy Execution: Regsvr32 T1059 - Command and Scripting Interpreter
File Artifacts 11
File Name Path SHA256 Signature Verdict Actions
cmd.exe - badf4752413cb0cbdc03fb95820ca167f0cdc63b597ccdb5ef43111180e088b0 SIGNATURE_SIGNED UNKNOWN VT
powershell.exe - 9785001b0dcf755eddb8af294a373c0b87b2498660f724e76c4d53f9c217c7a3 SIGNATURE_SIGNED UNKNOWN VT
regsvr32.exe - 022cb167a29a32dae848be91aef721c74f1975af151807dafcc5ed832db246b7 SIGNATURE_SIGNED UNKNOWN VT
UltimateXdrGenerator.exe - 82fabb35db24a714b179c912f8c0cb90ef174c8db9d6c5bbc59346da7478d82d SIGNATURE_UNSIGNED UNKNOWN VT
conhost.exe - b02ee54fb2ec69673386d41119ee8ed083a6eab3bfca6aa2155d20ce68ef8963 SIGNATURE_SIGNED UNKNOWN VT
python.exe - 467014615a5255aca450ae88100dd2caf887da87657f00e3c2171ec44a685aec SIGNATURE_SIGNED UNKNOWN VT
calc.exe - 58189cbd4e6dc0c7d8e66b6a6f75652fc9f4afc7ce0eba7d67d8c3feb0d5381f SIGNATURE_SIGNED UNKNOWN VT
mshta.exe - f8a2fd36fdc35aa8e7e678576a2ecc5d7b3fe6383e73101508e5d7b49443d153 SIGNATURE_SIGNED UNKNOWN VT
WMIC.exe - da603fa720ab43aa6d4d36aa9fdb828dab9645523eabaac209af6451d5b4d757 SIGNATURE_SIGNED UNKNOWN VT
tscon.exe - 15e3a70fd3f2972cd8d7826dfe4058255b0fbb974969828644d93256f7fb9c12 SIGNATURE_SIGNED UNKNOWN VT
timeout.exe - c8c350fab1130644536db6a84f605791367308b995079ad494d46a8c617c21d6 SIGNATURE_SIGNED UNKNOWN VT
Network Artifacts 0
No network artifacts found for this incident
Process Artifacts 4
Process Command Line Parent Process User
cmd.exe C:\WINDOWS\SYSTEM32\cmd.exe /c ""C:\app\cortex-xdr-siem-test\xdr_incident_runner... cmd.exe User
cmd.exe C:\WINDOWS\system32\cmd.exe /c "regsvr32 /s /n /u /i:http://127.0.0.1/test.sct s... cmd.exe DESKTOP-FNUMV3U\User
UltimateXdrGenerator.exe "C:\app\cortex-xdr-siem-test\xdr_tools\UltimateXdrGenerator\bin\publish\Ultimate... cmd.exe DESKTOP-FNUMV3U\User
UltimateXdrGenerator.exe "C:\app\cortex-xdr-siem-test\xdr_tools\UltimateXdrGenerator\bin\publish\Ultimate... cmd.exe DESKTOP-FNUMV3U\User
Registry Artifacts 0
No registry artifacts found for this incident
Analyst Verdict
HIGH
  • Isolate affected endpoints
  • Investigate all related alerts
  • Document findings
Summary
4
Alerts
1
Hosts
11
Files
0
Network
Alert Categories
Malware Collection Execution
Timeline
01-02 11:53:56
Incident Modified
Status or details updated
01-02 11:53:46
Script Activity - 3055004603
high - Prevented (Blocked)
01-02 11:53:42
Regsvr32 may have run code from an untrusted source
high - Detected
01-02 11:50:20
Incident Created
#91 - 'Regsvr32 may have run code from an untrusted source' along with 3 other issues
01-02 11:50:20
cmd.exe
Verdict: Unknown
01-02 11:50:20
powershell.exe
Verdict: Unknown
01-02 11:50:20
regsvr32.exe
Verdict: Unknown
01-02 11:50:20
UltimateXdrGenerator.exe
Verdict: Unknown
01-02 11:50:20
conhost.exe
Verdict: Unknown
01-02 11:50:20
python.exe
Verdict: Unknown
01-02 11:50:20
calc.exe
Verdict: Unknown
01-02 11:50:20
mshta.exe
Verdict: Unknown
01-02 11:50:20
WMIC.exe
Verdict: Unknown
01-02 11:50:20
tscon.exe
Verdict: Unknown
01-02 11:50:09
PowerShell runs with known Mimikatz arguments
medium - Detected
01-02 11:50:07
Suspicious Process Creation
medium - Prevented (Blocked)