Suspicious
Signed Huorong tool with PUA detection, direct-IP behavior, and UPX packing raises moderate concern.
d7212aa08e8b02523f…4eed174edcThe reasoning behind this verdict
The MT AI Engine weighs every signal from this scan — antivirus detections, sandbox behaviour, code signing, prevalence and historical matches — to reach a single, evidence-based verdict.
The combination of a verified Huorong signature, Sophos recognizing the product, and absence of malicious sandbox or child verdicts points away from outright malware. However, the Microsoft Trojan flag, UPX packing, direct-IP contact without DNS, and two triggered heuristics create a borderline profile typical of either a legitimate security utility or a signed dropper. No prior signer history or similar-hash precedents exist to resolve the ambiguity.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
Sophos tier1 detection 'Huorong HRSword (PUA)' directly names the signer vendor
Microsoft tier1 'Trojan:Win32/Wacatac.B!ml' + 2 low-trust malicious labels
triggeredHeuristics: MalwareTips.Synth.DirectIpC2 and DropperNetworkProfile (high severity)
signing.verified=true by 北京火绒网络科技有限公司 with offensive MITRE techniques present
- Verified signature from Huorong
- Sophos explicitly names Huorong product
- No malicious sandbox verdict
- No malicious dropped children
- Direct IP contact without DNS resolution
- UPX packing + high entropy code
- Microsoft Trojan detection
- Offensive MITRE techniques present
- Rare new prevalence
Treat as suspicious; do not execute on production systems until independently verified as an official Huorong utility.
What this file does
What it attempted when executed in an isolated sandbox
High concern: Records what you type — keylogger behaviour.
High concern: Talks to a remote server to take commands or send out your data.
High concern: Installs itself as a Windows service to stay running.
High concern: Sets itself to run automatically every time you start your PC.
Moderate concern: Obfuscates or packs its code to avoid detection.
Moderate concern: Deletes traces of itself to cover its tracks.
Moderate concern: Checks whether it's being watched in a sandbox before acting.
Translated from the file's technical behaviour during analysis. It never ran on your device.
What to do now
We couldn't fully clear this file. Treat it with caution.
Don't run it unless you're certain it came from a source you trust.
Check where you got it — an email attachment or a random download link is a red flag.
If you're unsure, delete it. You can always re-download a clean copy from the official source.
If you're still unsure, scan it again in a day or two — detections often catch up on newer files.
Huorong HRSword corroborated by 1 source
- MT AI EngineHuorong HRSword
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- 162.159.36.2
- C:\Users\<USER>\AppData\Local\Temp\BF87.tmp
- C:\Windows\sysnative\drivers\3PMQFOOk.sys
- C:\Users\<USER>\AppData\Local\Temp\D0CE.tmp
- C:\Users\<USER>\AppData\Local\Temp\E0FB.tmp
- C:\Windows\System32\drivers\dgZBNTjlSM.sys
- C:\Users\<USER>\AppData\Local\Temp\E0FB.tmp
- C:\Users\user\AppData\Local\Temp\206F.tmp
- C:\Users\user\AppData\Local\Temp\BC93.tmp
- C:\Windows\System32\drivers\5vz_Sv1qdyfY3K.sys
- C:\Windows\System32\drivers\UYAjTEAZmNf1Ml.sys
- HRKILLUI
- \Sessions\1\BaseNamedObjects\HRKILLUI
Files this sample writes at runtime
This file drops 4 children at runtime. None are currently flagged malicious in our cache.
- 114b0d6799ec2563969c…cd4e5cNever scannednever seen before
- 6272e419c24523f3e0a1…b556d5Never scannednever seen before
- d3bd429836092aa05c3d…473796Never scannednever seen before
- 23b8be7673546c504142…e072c1Never scannednever seen before
YARA & heuristic rule matches
A researcher-curated or high-severity heuristic rule matched this sample. These rules target specific malware families and are near-definitive.
Sample contacted 1 external IP address(es) and zero domains. Benign software virtually always uses DNS; no-DNS direct-IP C2 is a strong malware indicator because it bypasses reputation systems and dodges domain-based blocklists.
Evidence162.159.36.2Packed PE with sandbox-observed network activity AND engine flags. Signed packed software exists legitimately, but a signed + packed + flagged binary is a signed dropper pattern.
Evidence162.159.36.2
4 detections across 75 engines
Section entropy & packers
Executable sections have high entropy (7.2+) — the code is compressed or encrypted and only decrypted at runtime. Classic packing behaviour.
How widely this file has been seen
Barely seen in the wild and first surfaced recently. This is the footprint of targeted malware the AV industry hasn't signatured yet — extra scrutiny is warranted.
Forensic fingerprint
- File name
- HRKill.exe
- Size
- 1.92 MB
- MIME type
- (unknown)
- Detected type
- Win32 EXE
- SHA-256
- d7212aa08e8b02523f616b5890ce3b36fa0b175ce610ba43eca4ec4eed174edc
- MD5
- c6f185c1f4a91b6781dfc1cc066a383c
- SHA-1
- 84575c61ef1716f4893e6122feac196143008d6f
- PE imphash
- 08a50973e4f11e1488878b3c6f569bf8
- First seen (VT)
- 5/19/2026, 3:19:43 AM
- Last analysis (VT)
- 5/19/2026, 12:02:04 PM
- First scan (MalwareTips)
- 5/19/2026, 12:27:21 PM
- Last scan (MalwareTips)
- 5/19/2026, 1:34:23 PM
- Code signer
- 北京火绒网络科技有限公司verified
Safety FAQ
Common questions about HRKill.exe, answered from the scan data above.
- HRKill.exe is suspicious — treat it as unsafe until you're sure. 4 of 75 antivirus engines flag it (family: Huorong HRSword), which isn't a strong consensus but is enough to be cautious. Don't run it unless you fully trust where it came from, and prefer downloading the software fresh from its official site.
- HRKill.exe is a Windows executable program, about 1.9 MB. We identify a file by its cryptographic hash rather than its name, because the same filename can be reused by completely different files — the hash below is the reliable fingerprint.
- 4 of 75 antivirus engines flagged HRKill.exe, 4 of them as outright malicious. A small number of detections can include false positives, so we weigh which engines flagged it and what else the file does, not just the raw count.
- Act quickly. 1) Disconnect the device from the internet to stop the malware communicating or spreading. 2) Run a full scan with reputable anti-malware software (such as Malwarebytes) and quarantine everything it finds. 3) Change your important passwords from a DIFFERENT, clean device — many threats log keystrokes or steal saved credentials. 4) If you bank or shop on this device, watch closely for fraud and alert your bank. 5) For a confirmed infection, the most reliable fix is to back up your personal files and reinstall the operating system for a clean start.
- To remove HRKill.exe: 1) restart into Safe Mode (Safe Mode with Networking if you need to download a tool) so the malware doesn't auto-start. 2) Run a full scan with reputable anti-malware software and let it quarantine or delete the detections. 3) Delete the original HRKill.exe file and empty the Recycle Bin/Trash. 4) Check your browser extensions, startup items, and scheduled tasks for anything unfamiliar. 5) Reboot and scan again to confirm it's gone. If detections keep coming back, a clean operating-system reinstall is the most dependable cure.
- HRKill.exe is classified as adware or a potentially unwanted program (PUA) — not always destructive, but it bundles ads, trackers, or unwanted changes you didn't ask for. Engines attribute it to the Huorong HRSword family. Knowing the family matters because it tells you the likely impact — data theft, remote control, file encryption, or unwanted ads — and guides the cleanup.
- Yes — HRKill.exe carries a valid digital signature from 北京火绒网络科技有限公司, which confirms the file hasn't been tampered with since that publisher signed it. A valid signature is a positive signal, but note that malware is occasionally signed with stolen or abused certificates, so it isn't proof of safety on its own.
- The SHA-256 hash of HRKill.exe is d7212aa08e8b02523f616b5890ce3b36fa0b175ce610ba43eca4ec4eed174edc, and its MD5 is c6f185c1f4a91b6781dfc1cc066a383c. This hash is the file's unique fingerprint — two files with the same SHA-256 are identical. Use it to confirm you're looking at exactly this file (not just one with the same name) when comparing against antivirus databases or a download's published checksum.
- This report reflects the scan run on May 19, 2026. Because a file's hash never changes, the identity of HRKill.exe is fixed — but antivirus coverage improves over time, so a file that looks clean today can pick up detections later (and vice-versa). If you need the latest picture, MalwareTips staff can re-run the analysis from scratch.
Reviews & malware reports(0)
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