Our call: Is sesinetd.exe safe?Safe
Legitimate Houdini license server binary from Side Effects Software with only a single low-trust detection.
- The hash has a long, established submission history across 1,000 sources.Derived · Submission history
- One or more independent reference checks were incomplete or unavailable.Derived · External-intelligence coverage
- 5 high-confidence signature or behavior rules matched this file.Observed · Signature and behavior rules
2cd2b98b9f8b0e1ab1…c769850a0cRecommended next actions
Before running
Run it only when it came from the developer's official site or another source you independently trust.
If you already ran it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete1 of 75 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial20 runtime contacts were observed without a completed reputation cross-check.
YARA
Complete6 signature or behavior rules matched.
External intel
Partial1 of 3 independent reference sources completed.
Attack story
Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.
Input file
The submitted object
- FileObserved
sesinetd.exe
2cd2b98b9f8b0e1ab1d554e28671b080d214412388ce10092e3a2dc769850a0c
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\Desktop\file.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
%SAMPLEPATH%\2cd2b98b9f8b0e1ab1d554e28671b080d214412388ce10092e3a2dc769850a0c.exe
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
houdini.env
C:\Users\<USER>\Documents\houdini20.0\houdini.env
04Isolated runtime analysis - Written fileObserved
houdini_temp
C:\Users\user\AppData\Local\Temp\houdini_temp
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
204.79.197.203
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
20.99.186.246
Contact observed during runtime.
07Isolated runtime analysis - +1 more recorded observation in Analyst mode
7 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
The hash has a long, established submission history across 1,000 sources.
Verdict inputView chapterProvenanceDerivedSourceSubmission historyObserved at - 02
One or more independent reference checks were incomplete or unavailable.
ProvenanceDerivedSourceExternal-intelligence coverageObserved at - 03
5 high-confidence signature or behavior rules matched this file.
Verdict inputView chapterProvenanceObservedSourceSignature and behavior rulesObserved at - 04
Scanned file: sesinetd.exe — 2cd2b98b9f8b0e1ab1d554e28671b080d214412388ce10092e3a2dc769850a0c
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\Desktop\file.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — %SAMPLEPATH%\2cd2b98b9f8b0e1ab1d554e28671b080d214412388ce10092e3a2dc769850a0c.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: houdini.env — C:\Users\<USER>\Documents\houdini20.0\houdini.env
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: houdini_temp — C:\Users\user\AppData\Local\Temp\houdini_temp
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 204.79.197.203 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 20.99.186.246 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
Only one low-trust engine flagged the file; 17 tier-1 engines reported clean. The sample shows common_old prevalence across 1000 submitters and is signed by the known Houdini vendor. Direct-IP behaviour and generic YARA matches are consistent with false positives on this legitimate daemon.
The engine distribution is textbook low-trust-only false-positive shape. Prevalence data and the Side Effects signer strongly indicate the file is the official sesinetd license server shipped with Houdini. Sandbox and child-file results are clean. The two triggered heuristics (DirectIpC2 and yaraify) are outweighed by the aggregate benign signals.
What We Detected
Single low-trust detection (Trapmine) on an otherwise clean scan (70/71 undetected). File is signed by Side Effects Software Inc. and has been submitted by 1000 distinct sources since late 2023.
Threat Behavior
Direct IP contacts and generic debugger-constant YARA rules fired, but no malicious sandbox verdict, no malicious dropped children, and no tier-1 family consensus. Behaviour matches a legitimate network-licensing daemon.
What To Do Now
File can be trusted. If obtained from an official SideFX source, no further action required.
Where this verdict could be wrong2 caveats
- Direct-IP contact pattern (17 IPs, 0 domains) could indicate C2 if the signer were unknown, but prevalence and clean tier-1 results make stolen-cert or malware scenario unlikely.
- YARAify returned 14 rule hits, yet all listed rules are generic constants/debugger checks rather than malicious family signatures.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 17 tier-1 engines clean
- common_old prevalence (1000 sources)
- signed by Side Effects Software Inc.
- no malicious children or sandbox verdicts
- Direct IP connections without DNS (heuristic)
Treat as safe; the single low-trust flag is a false positive on this widely distributed Houdini component.
Behavior
Plain-English impact first, then the observed runtime evidence.
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.
- 204.79.197.203
- 20.99.186.246
- 192.229.211.108
- 23.216.147.67
- 20.99.133.109
- 20.99.185.48
- 23.216.147.76
- 23.216.147.64
- 20.99.184.37
- 23.6.103.183
- C:\Users\<USER>\Documents\houdini20.0\houdini.env
- C:\Users\user\AppData\Local\Temp\houdini_temp
- C:\Users\user\Documents\houdini20.0
- C:\Users\user\Documents\houdini20.0\houdini.env
- \Device\ConDrv
- C:\Windows\System32\spp\store\2.0\cache\cache.dat
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER2FD5.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER2FE6.tmp.csv
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER2FE7.tmp.txt
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER13C1.tmp.WERInternalMetadata.xml
- DBWinMutex
- \Sessions\1\BaseNamedObjects\DBWinMutex
Files this sample writes at runtime
This file drops 4 children at runtime. None are currently flagged malicious in our cache.
- 3fdf522ee115295ca9d4…844f9dNever scannednever seen before
- c6456e12e5e53287a547…3d144dNever scannednever seen before
- 570ae52615fb6f41a690…a925aaNever scannednever seen before
- b420f67419ac45b50918…41c230Never scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Detection sources at a glance
The available sources did not agree on a named threat category.
One or more independent reference databases matched this hash.
Signatures and behavior heuristics
A community signature or high-severity behavioral heuristic matched. Signatures identify known patterns; heuristics are strong leads but are not proof on their own.
- BLOWFISH_Constants
- Check_OutputDebugStringA_iat
- DebuggerCheck__API
- DebuggerException__SetConsoleCtrl
- MD5_Constants
The sample contacted an external IP address directly and no application domain was recorded. Direct-IP traffic also occurs in legitimate installers and infrastructure, so this is supporting context only and requires corroboration from host reputation and other runtime evidence.
Evidence204.79.197.203 · 20.99.186.246 · 192.229.211.108
1 of 75 engines flagged this file
View all 75 engine results
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.
Fingerprint and provenance
- File name
- sesinetd.exe
- Format
- Win32 EXE
- Code signing
- Signature not verified: Side Effects Software Inc.
- Size
- 12.1 MB
- Last analyzed
- Jun 4, 2026, 1:18 PM UTC
2cd2b98b9f8b0e1ab1d554e28671b080d214412388ce10092e3a2dc769850a0cSafety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file appears low risk based on the evidence available now.
Run it only when it came from the developer's official site or another source you independently trust.
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
Keep your antivirus and Windows updates switched on so you stay protected.