File scan report
Verdict Malicious
Is Custom.
Microsoft and Antiy identify a patching hacking tool, while 32 of the 68 antivirus engines that checked it flag the unsigned, VMProtect-associated DLL across 31 independent…
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Strong evidence · Two or more major antivirus engines agree.
Keep it only if you installed it on purpose for security testing. Otherwise delete it and run a full antivirus scan.
What to do now4 steps
This is a hacking tool. It is risky to keep and run, but finding it is not by itself a sign that the device is infected.
What to do
Don't use it unless you got it on purpose for security testing on systems you own. Let your antivirus remove this component, then repair or reinstall the program it belongs to from its official website. Don't delete or replace the file by hand.
If you didn't put it on the device yourself, delete it and run a full antivirus scan: something else may have brought it.
Tools like this often come with cracked or pirated software. If it came that way, treat the whole download as unsafe and scan everything it installed.
If you already used it
Stop using it, run a full scan with your antivirus and watch for unexpected behavior or security alerts.
If you opened or installed it
Avoid banking and sign-ins on that device until it is clean. These free MalwareTips guides walk you through it.
- Trojan removal guideClear steps for Windows, Mac and Android. (opens malwaretips.com in a new tab)
- Remove malware from WindowsStep-by-step cleanup with free tools. (opens malwaretips.com in a new tab)
- Ask for free help on the MalwareTips forumWindows malware removal help, answered by volunteers. (opens malwaretips.com in a new tab)
Paste this report's link in your topic so helpers can see what was found.
Antivirus results
32 of 68 flagged
- Flagged 32
- No detection 36
- No result 7
- Code signing Unsigned
- Test run Completed
- First seen 1y ago
Chapter 02
Why we think so
6 points against it and 4 in its favour, checked against the scan evidence.
The reasoning behind this verdict
Overall, 32 of the 68 antivirus engines that checked it flag it, including seven major antivirus engines, with additional VMProtect and game-hack labels.
The decisive evidence is the corroborated hacking tool classification: Microsoft reports HackTool:Win32/Patcher and Antiy reports the same patcher category. Detection breadth is substantial, with 32 of the 68 antivirus engines that checked it flagging the file and seven major detections. ESET, Malwarebytes, and other engines add VMProtect, game-hack, riskware, and trojan-oriented labels, although they do not converge on one conventional malware family. One sandbox run loaded the DLL through rundll32 and observed T1548, but it did not produce a malicious sandbox verdict or record persistence. The file's high prevalence and several non-detecting major engines are counter-signals, yet they do not outweigh a major-confirmed hacking tool label supported by another engine.
What We Detected
32 of the 68 antivirus engines that checked it flagged this unsigned DLL, including seven major antivirus engines and 31 independently counted detections. Microsoft identified it as HackTool:Win32/Patcher, while Antiy also reported a Win32 patcher hacktool. Malwarebytes added a game-hack label, and ESET identified a VMProtect-associated suspicious application.
Threat Behavior
A completed sandbox run loaded the DLL through rundll32.exe, including an invocation of an OnlineFix export, and mapped T1548. No persistence indicators or dropped files were recorded, and that sandbox did not return a malicious verdict. No complete contacted-host reputation result is available, although the observed run recorded no sample network contacts.
What To Do Now
Do not load or register the DLL on a production system. Quarantine or remove it, keep security software enabled, and obtain the software only from an authorized source; if it already ran, perform a full system scan and review related game or application files for unauthorized modifications.
Where this verdict could be wrong4 caveats
- The file is widely encountered and over a year old, with 3,719 submitting sources and 19,499 total submissions.
- The completed sandbox run did not issue a malicious verdict, and no persistence indicators or dropped files were recorded.
- Several prominent engines, including BitDefender, Avast, and AVG, did not flag the file.
- Research feeds produced no family-specific rules or hash intelligence, although absence of such coverage does not negate the antivirus findings.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- The file is widely encountered, with 3,719 submitting sources and 19,499 submissions over more than a year.
- The completed sandbox run produced no malicious verdict and recorded no persistence or dropped files.
- BitDefender, Avast, and AVG did not flag the sample.
- Research intelligence returned no malware-specific rule or hash match.
- A Microsoft detection identifies the DLL as a patching hacktool.
- A second engine independently applies the same patcher hacking tool classification.
- Thirty-two of the 68 antivirus engines that checked it flag the file, including seven major antivirus engines.
- The DLL is unsigned and therefore has no verifiable publisher identity.
- Several engines associate it with VMProtect, game-hack, riskware, or trojan activity.
- Sandbox execution loaded the DLL through rundll32 and recorded a privilege-related technique.
6 sources checked · 5 complete · 1 not needed or not applicable. See every source
Chapter 03
What it did in our test
It ran in our isolated test environment; no test environment rated what it did as risky.
Test run summary
Capture complete- 10sandbox rule tags
- 13spawned processes
- 0network contacts
- 2filesystem & mutex artifacts
What the test run showed
What the file did on a test computer
Confirmed in the test run
Moderate concern: Contains packed or scrambled code that is harder to inspect (common in installers too).
Moderate concern: Checked whether it was running on a test computer.
Note: Listed the programs running on the test computer.
Note: Read basic details of the test computer, such as its Windows version.
Note: Checked which security software was installed on the test computer.
Sandbox labels we could not confirm (common in safe files too)
Not confirmed: A sandbox rule tagged this run as recording keystrokes; no keylogging was confirmed.
Not confirmed: A sandbox rule tagged this run as changing how Windows loads code; nothing confirms it.
This file was run on a test computer (a sandbox), not on yours. Labels we could not confirm are listed so you can see them, but they are not treated as evidence against the file.
Threat context
How hacking tools are used
Hacking tools are programs that can switch off security software, test passwords or attack other computers. Security professionals use them on purpose; criminals also bundle them with malware.
Bottom line:Keep it only if you installed it on purpose, and check how it got onto the device if you didn't.
Recorded behavior
What happened in the test
Grouped by step. The order is not a timeline.
- 1
Input file
The submitted object
- Evidence 1 of 4: FileSeen in the test run
Custom.dll
2654311082f8a0c252776e5267d63d93c7b0672904d9b241393345b1be9da58d
Uploaded file
- 2
Processes
What ran
- Evidence 2 of 4: ProcessSeen in the test run
rundll32.exe
"C:\Windows\sysnative\rundll32.exe" "C:\Users\<USER>\Desktop\library.dll",#1
Test run - Evidence 3 of 4: ProcessSeen in the test run
loaddll64.exe
C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\Custom.dll"
Test run - +1 more recorded observation
- 1
Files
Created or changed
- Evidence 4 of 4: Written fileSeen in the test run
Connect
\Device\ConDrv\\Connect
Test run
4 facts from the test run. See the full activity list.
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Techniques observed in the sandbox
10MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1027· Obfuscated code
- T1027.002· Obfuscated code
- T1056.004· Keylogging
- T1057· Lists programs
- T1082· System recon
- T1218.011
- T1497· Sandbox evasion
- T1518.001· Checks your AV
- T1548
- T1574.002· Execution hijack
Observed activity
Processes started
13Programs the file ran, with their command lines.
rundll32.exe"C:\Windows\sysnative\rundll32.exe" "C:\Users\<USER>\Desktop\library.dll",#1loaddll64.exeC:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\Custom.dll"cmd.exeC:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Custom.dll",#1rundll32.exeC:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Custom.dll",#1rundll32.exeC:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\Custom.dll,OnlineFixloaddll64.exeC:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\library.dll"
Show all 13 entries for processes started
cmd.exeC:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\library.dll",#1rundll32.exeC:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\library.dll",#1rundll32.exeC:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\library.dll,OnlineFixloaddll64.exeC:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\init.dll"cmd.exeC:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\init.dll",#1rundll32.exeC:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\init.dll",#1rundll32.exeC:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\init.dll,OnlineFix
Files
1Files the file created, changed or deleted.
- Written
\Device\ConDrv\\Connect
Mutexes
1Named locks a program uses so only one copy runs; malware families often reuse them.
\Sessions\1\BaseNamedObjects\Local\SessionImmersiveColorMutex
Sandbox background — not the file
1The analysis machine's own processes and connections, recorded in every run.
- VM process
conhost.exeC:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Chapter 04
Technical details
32 of the 68 antivirus engines that checked it flag it; no publisher signature.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.
Engines that flagged it 32
- Avira (major engine)APPL/AgentW64.ToolX
- ESET-NOD32 (major engine)Win64/Packed.VMProtect.AC suspicious application
- F-Secure (major engine)Program.APPL/AgentW64.ToolX
- Fortinet (major engine)Riskware/Application
- GData (major engine)Win64.Application.Agent.PQZSPK
- Ikarus (major engine)PUA.VMProtect
- Microsoft (major engine)HackTool:Win32/Patcher
- Sophos (major engine)Generic Reputation PUA (PUA)
File fingerprint
- Last analyzed
- Oct 16, 2026, 2:41 AM UTC
- SHA-256
2654311082f8a0c252776e5267d63d93c7b0672904d9b241393345b1be9da58d- SHA-1
99f3ed9ca604a436754792b8013514dd4fd3c93d- MD5
06801400e11854407c43a3a27cc737c6
About this file
Custom.dll is a Win32 DLL file of 11.8 MB.
- Type and size
- Win32 DLL · 11.8 MB
- Signer
- UnsignedNo code signature.
- First seen
- Mar 27, 2025On VirusTotal.
- Submitted by
- 3,719 distinct sources
- Packer
- None detected
- Entropy
- 7.76 of 8
First scanned
Antivirus consensus
32 of 68 engines flagged this file
7 of the 75 engines returned no result for this file (file type not supported, or the scan did not finish), so they did not check it.
The 32 detections come from 30 independent scan engines: several vendors license the same engine, so their results are one vote.
- Tier-117 engines7flagged8 vendors sharing 7 engines
- Tier-235 engines14flagged15 vendors sharing 14 engines
- Low-trust16 engines9flagged
View all 75 engine results
- alibabacloudMalicious: VirTool:Win/Packed.VMProtect.AW
- Antiy-AVLMalicious: HackTool/Win32.Patcher
- APEXMalicious: Malicious
- AviraMalicious: APPL/AgentW64.ToolX
- BkavMalicious: W32.Malware.48AF9C7E
- CrowdStrikeMalicious: win/grayware_confidence_100% (W)
- CTXMalicious: dll.trojan.vmprotect
- CylanceMalicious: Unsafe
- CynetMalicious: Malicious (score: 100)
- DeepInstinctMalicious: MALICIOUS
- ElasticMalicious: malicious (high confidence)
- ESET-NOD32Malicious: Win64/Packed.VMProtect.AC suspicious application
- F-SecureMalicious: Program.APPL/AgentW64.ToolX
- FortinetMalicious: Riskware/Application
- GDataMalicious: Win64.Application.Agent.PQZSPK
- GoogleMalicious: Detected
- GridinsoftMalicious: Trojan.Heur!.022120A2
- IkarusMalicious: PUA.VMProtect
- K7AntiVirusMalicious: Trojan ( 005aeb761 )
- K7GWMalicious: Trojan ( 005aeb761 )
- LionicMalicious: Trojan.Win32.VMProtect.4!c
- MalwarebytesMalicious: RiskWare.GameHack
- MaxSecureMalicious: Trojan.Malware.685265187.susgen
- MicrosoftMalicious: HackTool:Win32/Patcher
- PaloaltoMalicious: generic.ml
- SangforMalicious: Trojan.Win32.Save.a
- SentinelOneMalicious: Static AI - Suspicious PE
- SkyhighMalicious: BehavesLike.Win64.Trojan.wc
- SophosMalicious: Generic Reputation PUA (PUA)
- VaristMalicious: W64/ABApplication.RYSV-1291
- WebrootMalicious: W32.Hack.Tool
- YandexMalicious: Trojan.Igent.b51oj2.1
- AcronisClean
- AhnLab-V3Clean
- AlibabaClean
- ALYacClean
- ArcabitClean
- AvastClean
- Avast-MobileNo result
- AVGClean
- BitDefenderClean
- BitDefenderFalxNo result
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- DrWebClean
- EmsisoftClean
- huorongClean
- JiangminClean
- KasperskyClean
- KingsoftClean
- McAfeeDClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PandaNo result
- RisingNo result
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisClean
- TencentClean
- TrapmineClean
- TrellixENSNo result
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- XcitiumClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
Section entropy & packers
No high-entropy executable section or known packer signature was detected. Data and resource sections can still have high entropy without indicating packed code.
How widely this file has been seen
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Chapter 05
Questions & answers
Short answers to the 8 questions people ask most about this file.
Is Custom.dll malware?
What is Custom.dll?
How many antivirus engines detected Custom.dll?
I already downloaded and used Custom.dll — what should I do?
How do I remove Custom.dll?
What kind of program is Custom.dll?
What is the SHA-256 hash of Custom.dll?
How up to date is this analysis of Custom.dll?
Community
Member reviews and reports for this exact file hash.