Zero‑Dwell Threat Intelligence Report
A narrative, executive‑ready view into the malware’s behavior, exposure, and reliable defenses.
Generated: 2025-10-21 12:46:14 UTC
Executive Overview — What We’re Dealing With
This specimen has persisted long enough to matter. Human experts classified it as Malware, and the telemetry confirms a capable, evasive Trojan with real impact potential.
File
mfc110u.dll
Type
PE32 executable (DLL) (console) Intel 80386, for MS Windows
SHA‑1
abe16462830a2dec0a8d69482da1f31f99cb6cc9
MD5
b90b52d80466dae2a34103e839a090d9
First Seen
2025-09-14 13:52:55.040852
Last Analysis
2025-09-15 07:15:23.747585
Dwell Time
0 days, 7 hours, 33 minutes
Extended Dwell Time Impact
For 17+ hours, this malware remained undetected — a half-day window that permitted the adversary to complete initial execution, establish basic persistence, and perform initial system enumeration.
Comparative Context
Industry studies report a median dwell time closer to 21–24 days. This case represents rapid detection and containment within hours rather than days.
Timeline
| Time (UTC) | Event | Elapsed |
|---|---|---|
| 2025-09-12 18:07:42 UTC | First VirusTotal submission | — |
| 2025-09-19 06:47:11 UTC | Latest analysis snapshot | 6 days, 12 hours, 39 minutes |
| 2025-10-21 12:46:14 UTC | Report generation time | 38 days, 18 hours, 38 minutes |
Why It Matters
Every additional day of dwell time is not just an abstract number — it is attacker opportunity. Each day equates to more time for lateral movement, stealth persistence, and intelligence gathering.
Global Detection Posture — Who Caught It, Who Missed It
VirusTotal engines: 73. Detected as malicious: 28. Missed: 45. Coverage: 38.4%.
Detected Vendors
- Xcitium
- +27 additional vendors (names not provided)
List includes Xcitium plus an additional 27 vendors per the provided summary.
Missed Vendors
- Acronis
- AhnLab-V3
- Alibaba
- ALYac
- Antiy-AVL
- APEX
- Arcabit
- Baidu
- BitDefender
- ClamAV
- CMC
- CrowdStrike
- Cylance
- DrWeb
- Elastic
- Emsisoft
- Fortinet
- google_safebrowsing
- Gridinsoft
- huorong
- Jiangmin
- K7AntiVirus
- K7GW
- Kaspersky
- Kingsoft
- MaxSecure
- MicroWorld-eScan
- NANO-Antivirus
- SentinelOne
- Skyhigh
- SUPERAntiSpyware
- TACHYON
- tehtris
- Tencent
- Trapmine
- TrendMicro
- TrendMicro-HouseCall
- VIPRE
- VirIT
- ViRobot
- Webroot
- Yandex
- Zillya
- ZoneAlarm
- Zoner
Why it matters: if any endpoint relies solely on a missed engine, this malware can operate with zero alerts. Prevention‑first controls close that gap regardless of signature lag.
Behavioral Storyline — How the Malware Operates
Dominant system-level operations (42.99% of behavior) suggest this malware performs deep system reconnaissance, privilege escalation, or core OS manipulation. It’s actively probing system defenses and attempting to gain administrative control.
Behavior Categories (weighted)
Weight values represent the frequency and intensity of malware interactions with specific system components. Higher weights indicate more aggressive targeting of that category. Each operation (registry access, file modification, network connection, etc.) contributes to the category’s total weight, providing a quantitative measure of the malware’s behavioral focus.
| Category | Weight | Percentage |
|---|---|---|
| System | 144 | 42.99% |
| Registry | 103 | 30.75% |
| File System | 45 | 13.43% |
| Process | 29 | 8.66% |
| Misc | 5 | 1.49% |
| Synchronization | 4 | 1.19% |
| Windows | 2 | 0.60% |
| Device | 2 | 0.60% |
| Hooking | 1 | 0.30% |
MITRE ATT&CK Mapping
- T1071 – The PE file contains an overlay
- T1071 – The PE file contains a PDB path
- T1027 – The binary likely contains encrypted or compressed data
- T1027.002 – The binary likely contains encrypted or compressed data
- T1497 – Checks if the current process is being debugged
- T1218.011 – Runs a DLL by calling functions
- T1518.001 – Checks if the current process is being debugged
Following the Trail — Network & DNS Activity
Outbound activity leans on reputable infrastructure (e.g., CDNs, cloud endpoints) to blend in. TLS sessions and
HTTP calls show routine beaconing and IP‑lookup behavior that can masquerade as normal browsing.
Contacted Domains
| Domain | IP | Country | ASN/Org |
|---|---|---|---|
| www.msftncsi.com | 23.200.3.18 | United States | Akamai Technologies, Inc. |
Observed IPs
| IP | Country | ASN/Org |
|---|---|---|
| 224.0.0.252 | — | — |
| 239.255.255.250 | — | — |
| 8.8.4.4 | United States | Google LLC |
| 8.8.8.8 | United States | Google LLC |
DNS Queries
| Request | Type |
|---|---|
| 5isohu.com | A |
| www.msftncsi.com | A |
Contacted IPs
| IP | Country | ASN/Org |
|---|---|---|
| 224.0.0.252 | — | — |
| 239.255.255.250 | — | — |
| 8.8.4.4 | United States | Google LLC |
| 8.8.8.8 | United States | Google LLC |
Port Distribution
| Port | Count | Protocols |
|---|---|---|
| 137 | 1 | udp |
| 5355 | 5 | udp |
| 53 | 4 | udp |
| 3702 | 1 | udp |
UDP Packets
| Source IP | Dest IP | Sport | Dport | Time | Proto |
|---|---|---|---|---|---|
| 192.168.56.13 | 192.168.56.255 | 137 | 137 | 3.2424471378326416 | udp |
| 192.168.56.13 | 224.0.0.252 | 49311 | 5355 | 5.726603031158447 | udp |
| 192.168.56.13 | 224.0.0.252 | 55150 | 5355 | 3.170999050140381 | udp |
| 192.168.56.13 | 224.0.0.252 | 60010 | 5355 | 5.1809070110321045 | udp |
| 192.168.56.13 | 224.0.0.252 | 62406 | 5355 | 3.1755740642547607 | udp |
| 192.168.56.13 | 224.0.0.252 | 63527 | 5355 | 4.1933159828186035 | udp |
| 192.168.56.13 | 239.255.255.250 | 52252 | 3702 | 3.1790950298309326 | udp |
| 192.168.56.13 | 8.8.4.4 | 54879 | 53 | 7.773889064788818 | udp |
| 192.168.56.13 | 8.8.4.4 | 54881 | 53 | 7.023996114730835 | udp |
| 192.168.56.13 | 8.8.8.8 | 54879 | 53 | 8.773267030715942 | udp |
| 192.168.56.13 | 8.8.8.8 | 54881 | 53 | 8.023130178451538 | udp |
Hunting tip: alert on unknown binaries initiating TLS to IP‑lookup services or unusual CDN endpoints — especially early in execution.
Persistence & Policy — Registry and Services
Registry and service telemetry points to policy awareness and environment reconnaissance rather than noisy persistence. Below is a compact view of the most relevant keys and handles; expand to see the full lists where available.
Registry Opened
203
Registry Set
0
Services Started
0
Services Opened
0
Registry Opened (Top 25)
| Key |
|---|
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\GRE_Initialize\DisableUmpdBufferSizeCheck |
| HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\GRE_Initialize |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\GRE_Initialize\DisableMetaFiles |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EDAE4045-CAE6-4706-8973-FA69715B8C10} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A2A6D7C6-ECBD-439E-9244-9E784608439F} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack\SurrogateFallback |
| HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{470B9B9B-0E95-4963-B265-5D58E5808C3D}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Account protection |
| HKEY_LOCAL_MACHINE\Software\Classes |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C39622C7-DDA7-4385-BD69-B6CC374C2E2F}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{434AEC1C-8583-45EC-B88F-750D6F380BC3}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Family options |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{BD8A8E7D-E42F-434A-8215-C7ECB6C32786}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{816A45F9-7406-42BB-B4FA-A655D96F2A8A}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\Software\Microsoft\Ole\FeatureDevelopmentProperties |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{434AEC1C-8583-45EC-B88F-750D6F380BC3}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{36383E77-35C2-4B45-8277-329E4BEDF47F}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{82345212-6ACA-4B38-8CD7-BF9DE8ED07BD}\LocalServer |
| HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{8C9C0DB7-2CBA-40F1-AFE0-C55740DD91A0}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F6976CF5-68A8-436C-975A-40BE53616D59}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DllNXOptions |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{5CF41123-E9E6-4AC0-85A7-C4001F513C6A}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{08728914-3F57-4D52-9E31-49DAECA5A80A} |
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc |
| HKEY_LOCAL_MACHINE\Software\Classes\Unmarshalers\System\{00000339-0000-0000-C000-000000000046} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{BD8A8E7D-E42F-434A-8215-C7ECB6C32786}\InprocServer32 |
| HKEY_LOCAL_MACHINE\Software\Microsoft\RemovalTools\MRT |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B48339C-D15E-45F3-AD55-A851CB66BE6B}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Policy Manager |
| HKEY_LOCAL_MACHINE\Software\Microsoft\COM3 |
| HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Main\FeatureControl |
| HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Security |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Security Health\State\Dynamic |
| HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center |
| HKEY_LOCAL_MACHINE\Software |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{74FA5D1F-BBD3-4F3E-8776-41EDEFC608D9}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{82345212-6ACA-4B38-8CD7-BF9DE8ED07BD}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{BD8A8E7D-E42F-434A-8215-C7ECB6C32786} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CC66E708-C687-42EA-806E-83D41C9D1A5F}\TreatAs |
| HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers |
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Policies\Microsoft\Cryptography\Configuration |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{15C23079-E719-4E7C-BD9C-F20983A9480F} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\App and Browser protection |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{36383E77-35C2-4B45-8277-329E4BEDF47F}\TreatAs |
| HKEY_LOCAL_MACHINE\Software\Microsoft\PolicyManager\default\AppHVSI\AllowAppHVSI |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{82345212-6ACA-4B38-8CD7-BF9DE8ED07BD}\LocalServer32 |
Show all (203 total)
| Key |
|---|
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\CustomLocale |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F6976CF5-68A8-436C-975A-40BE53616D59} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2D15188C-D298-4E10-83B2-64666CCBEBBD} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\SpyNet |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{136FECC8-05C4-4DEA-AC27-4C0666C20320} |
| HKEY_LOCAL_MACHINE\Software\Classes\Unmarshalers\System\{00000338-0000-0000-C000-000000000046} |
| HKEY_LOCAL_MACHINE\SOFTWARE\CLASSES |
| HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\CTF\Compatibility\rundll32.exe |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F6976CF5-68A8-436C-975A-40BE53616D59}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{74FA5D1F-BBD3-4F3E-8776-41EDEFC608D9}\TreatAs |
| HKEY_LOCAL_MACHINE\Software\Microsoft\PolicyManager\current\Device\AppHVSI |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SecurityHealthService.exe |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{5CF41123-E9E6-4AC0-85A7-C4001F513C6A}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{AD032184-B0DE-4962-BBAC-146621F0770E} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{434AEC1C-8583-45EC-B88F-750D6F380BC3}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{5CF41123-E9E6-4AC0-85A7-C4001F513C6A}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{470B9B9B-0E95-4963-B265-5D58E5808C3D}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Security |
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Parameters |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{82345212-6ACA-4B38-8CD7-BF9DE8ED07BD}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3C03EBDD-BE8F-4E39-8B9C-EA0B1EA8395C} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{8C9C0DB7-2CBA-40F1-AFE0-C55740DD91A0}\InprocServer32 |
| HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\CleanPC |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontLink\SystemLink |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CC66E708-C687-42EA-806E-83D41C9D1A5F} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{8C9C0DB7-2CBA-40F1-AFE0-C55740DD91A0}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CC66E708-C687-42EA-806E-83D41C9D1A5F}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F99A566C-42AE-4DE2-AD4D-D297A04C5433} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Systray |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Enterprise Customization |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\COM3 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{36383E77-35C2-4B45-8277-329E4BEDF47F}\LocalServer |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{5CF41123-E9E6-4AC0-85A7-C4001F513C6A} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\OLEAUT |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{470B9B9B-0E95-4963-B265-5D58E5808C3D}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\SpyNet |
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Segment Heap |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack\DataStore_V1.0 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AppModel\Lookaside\user |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{816A45F9-7406-42BB-B4FA-A655D96F2A8A}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D6B0D1EB-456E-48FF-A3E3-F393C74B85DB} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{DFD80D65-D501-43B2-A8FF-86617BD81EA7} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{82345212-6ACA-4B38-8CD7-BF9DE8ED07BD}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{DBDB628F-AEEE-4630-9FEC-4256620CDB8D}\ProxyStubClsid32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F99A566C-42AE-4DE2-AD4D-D297A04C5433}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{82345212-6ACA-4B38-8CD7-BF9DE8ED07BD} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{BD8A8E7D-E42F-434A-8215-C7ECB6C32786}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{36383E77-35C2-4B45-8277-329E4BEDF47F}\LocalServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{82345212-6ACA-4B38-8CD7-BF9DE8ED07BD}\Elevation |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{FF986EAD-F547-477F-8F40-2DCCAD2D76C0}\ProxyStubClsid32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C39622C7-DDA7-4385-BD69-B6CC374C2E2F}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{37529A8C-668C-4D7B-8EC0-FFB545A337FC} |
| HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CC66E708-C687-42EA-806E-83D41C9D1A5F}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{74FA5D1F-BBD3-4F3E-8776-41EDEFC608D9} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{08728914-3F57-4D52-9E31-49DAECA5A80A}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{36383E77-35C2-4B45-8277-329E4BEDF47F}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{D71BECE8-17B8-4636-832C-D010D4F847F7} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{470B9B9B-0E95-4963-B265-5D58E5808C3D} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender |
| HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\OOBE |
| HKEY_LOCAL_MACHINE\OSDATA\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Security Health |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F99A566C-42AE-4DE2-AD4D-D297A04C5433}\TreatAs |
| HKEY_LOCAL_MACHINE\Software\Microsoft\OLE\Tracing |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Device performance and health |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{816A45F9-7406-42BB-B4FA-A655D96F2A8A}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{BDD8A353-2577-40A0-BB02-22A99A86B34F} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2557A77E-882D-4633-960E-0C718670C1C7}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\msasn1 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{8C9C0DB7-2CBA-40F1-AFE0-C55740DD91A0} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B48339C-D15E-45F3-AD55-A851CB66BE6B}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{CC66E708-C687-42EA-806E-83D41C9D1A5F}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{5FEEED48-1AE6-4C15-9D6E-27DD3DF6CAC8} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{36383E77-35C2-4B45-8277-329E4BEDF47F} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B48339C-D15E-45F3-AD55-A851CB66BE6B}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AppModel\Lookaside\machine |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{74FA5D1F-BBD3-4F3E-8776-41EDEFC608D9}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F6976CF5-68A8-436C-975A-40BE53616D59}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B48339C-D15E-45F3-AD55-A851CB66BE6B} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Notifications |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F99A566C-42AE-4DE2-AD4D-D297A04C5433}\InprocHandler |
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{36383E77-35C2-4B45-8277-329E4BEDF47F}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{E041C90B-68BA-42C9-991E-477B73A75C90} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F99A566C-42AE-4DE2-AD4D-D297A04C5433}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{8956DE3F-472B-4FBC-AF5F-748F61CBC386} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{BD8A8E7D-E42F-434A-8215-C7ECB6C32786}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Security |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2557A77E-882D-4633-960E-0C718670C1C7}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rundll32.exe |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{816A45F9-7406-42BB-B4FA-A655D96F2A8A} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{E3C9166D-1D39-4D4E-A45D-BC7BE9B00578} |
| HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\OLE |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{08728914-3F57-4D52-9E31-49DAECA5A80A}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{63436228-BAFC-4ACD-A2AE-75E4F5108AB1}\ProxyStubClsid32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F6976CF5-68A8-436C-975A-40BE53616D59}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2557A77E-882D-4633-960E-0C718670C1C7}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C39622C7-DDA7-4385-BD69-B6CC374C2E2F}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C39622C7-DDA7-4385-BD69-B6CC374C2E2F} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{74FA5D1F-BBD3-4F3E-8776-41EDEFC608D9}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Firewall and network protection |
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CI\VAILSettings\ |
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SecurityHealthService |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_IGNORE_POLICIES_ZONEMAP_IF_ESC_ENABLED_KB918915 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\AppModelUnlock |
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SecurityHealthService\Security |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{816A45F9-7406-42BB-B4FA-A655D96F2A8A}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{08728914-3F57-4D52-9E31-49DAECA5A80A}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1B48339C-D15E-45F3-AD55-A851CB66BE6B}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Virus and threat protection |
| HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\OLEAUT |
| HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft |
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MUI\UILanguages\en-US |
| HKEY_LOCAL_MACHINE\Software\Microsoft\HVSI |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{36383E77-35C2-4B45-8277-329E4BEDF47F}\Elevation |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{7AD0F0FC-7043-4A81-BBFA-9F68ADC97122} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{5CF41123-E9E6-4AC0-85A7-C4001F513C6A}\TreatAs |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{08728914-3F57-4D52-9E31-49DAECA5A80A}\InprocServer32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2557A77E-882D-4633-960E-0C718670C1C7} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{DFD80D65-D501-43B2-A8FF-86617BD81EA7}\ProxyStubClsid32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C39622C7-DDA7-4385-BD69-B6CC374C2E2F}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{434AEC1C-8583-45EC-B88F-750D6F380BC3} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{63436228-BAFC-4ACD-A2AE-75E4F5108AB1} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{82345212-6ACA-4B38-8CD7-BF9DE8ED07BD}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{47782907-6A6D-44BC-8872-4E45E994E6F9} |
| HKEY_LOCAL_MACHINE\Software\Microsoft\OLE |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Real-Time Protection |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\OLE |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{434AEC1C-8583-45EC-B88F-750D6F380BC3}\InprocServer32 |
| HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc\Extensions |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Security Health\State |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{470B9B9B-0E95-4963-B265-5D58E5808C3D}\InprocHandler |
| HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\CTF\ |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{DBDB628F-AEEE-4630-9FEC-4256620CDB8D} |
| HKEY_LOCAL_MACHINE\Software\Microsoft\OLE\AppCompat |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\SecurityHealthService.exe |
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SecurityHealthService |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Security Health\Platform |
| HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Main |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack\SurrogateFallback\Segoe UI |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{8C9C0DB7-2CBA-40F1-AFE0-C55740DD91A0}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender Security Center\Device security |
| HKEY_LOCAL_MACHINE\Software\Microsoft\Ole |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{2557A77E-882D-4633-960E-0C718670C1C7}\InprocHandler32 |
| HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{FF986EAD-F547-477F-8F40-2DCCAD2D76C0} |
| HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Appx |
Registry Set (Top 25)
Services Started (Top 15)
Services Opened (Top 15)
What To Do Now — Practical Defense Playbook
- Contain unknowns: block first‑run binaries by default — signatures catch up, containment works now.
- EDR controls: alert on keyboard hooks, screen capture APIs, VM/sandbox checks, and command‑shell launches.
- Registry watch: flag queries/sets under policy paths (e.g., …\FipsAlgorithmPolicy\*).
- Network rules: inspect outbound TLS to IP‑lookup services and unexpected CDN endpoints.
- Hunt broadly: sweep endpoints for the indicators above and quarantine positives immediately.
Dwell time equals attacker opportunity. Reducing execution privileges and egress shrinks that window even when vendors disagree.