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Verdict Suspicious

Analyzed , 9 days ago

Is AfterFXLib.dll safe? Treat it as suspicious.

This Adobe After Effects library carries an Adobe name but its signature does not verify. Microsoft alone flags it as Posilod, which points to a modified or patched file.

Read the whole reasonShow less

Why Suspicious? One antivirus engine (Microsoft) flags it; nothing else confirms it.

Limited evidence

Don't use it until you know where it came from

Replace this DLL with a fresh copy from Adobe's official installer rather than running it. Keep antivirus protection enabled and scan the system if the file came from an unofficial source.

What to do now4 steps

Some signs point to a problem, but nothing confirms it is harmful. Treat it with caution.

What to do

  1. Don't use it unless you're sure where it came from.

  2. Check where you got it: an unexpected attachment, a link someone sent you or a re-upload is a red flag.

  3. If you can't confirm where it came from, delete it. If you need the program, download it again from the publisher's own website.

If you already used it

  1. Stop using it, run a full scan with your antivirus and watch for unexpected behavior or security alerts.

Not sure what to do?

Ask the MalwareTips community before you run it. If you already ran it, follow the cleanup guide.

Paste this report's link in your topic so helpers can see what was found.

Why we think so

Share this file report

AfterFXLib.dll: Suspicious — MalwareTips file scan

The link always shows the latest result for this exact file (its SHA-256 fingerprint).

Reads the latest antivirus results for this file's hash. Nothing is uploaded.

Antivirus results

1 of 68 flagged

  • Flagged 1
  • No detection 67
  • No result 7
FileAfterFXLib.dll49.3 MBSHA-256 e0b699f4d85d…17e790
  • Code signing Signer not verified
  • Test run Completed
  • First seen 1mo ago
1 of the 68 antivirus engines that checked it flags it (Microsoft).

Chapter 02

Why we think so

3 points against it and 4 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

Only 1 of the 68 antivirus engines that checked it flagged this DLL: Microsoft, with a Posilod label. The sandbox run was clean. However, the file's Adobe signature is invalid and the file is marked corrupt. That is typical of patched or cracked Adobe components and leaves its integrity unconfirmed.

Where this verdict could be wrong2 caveats
  • Sixteen other major antivirus engines, including Kaspersky, ESET, BitDefender and Avast, did not flag the file. The sandbox run was clean, so the Microsoft detection could be a false positive on a legitimate but damaged Adobe library.
  • The broken signature may be caused by file corruption or truncation in transit rather than deliberate tampering.

These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.

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
  • 11sandbox rule tags
  • 6spawned processes
  • 0network contacts
  • 1filesystem & 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).

  • Note: Read the user name of the test computer.

  • Note: Listed the programs running on the test computer.

  • Note: Read basic details of the test computer, such as its Windows version.

Sandbox labels we could not confirm (common in safe files too)

  • Not confirmed: A sandbox rule tagged this run as code injection, but no injected program was recorded.

  • Not confirmed: A sandbox rule tagged this run as contacting a server, but no contacted host was recorded.

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.

Recorded behavior

What happened in the test

Grouped by step. The order is not a timeline.

Seen in the test runWorked out from other results

  1. Input file

    The submitted object

    1
    1. Evidence 1 of 4: FileSeen in the test run

      AfterFXLib.dll

      e0b699f4d85df5e799d3aba0dfd2e79d5caee20f253b6413037aed253f17e790

      Uploaded file

  2. Processes

    What ran

    2
    1. Evidence 2 of 4: ProcessSeen in the test run

      rundll32.exe

      "C:\Windows\sysnative\rundll32.exe" "C:\Users\<USER>\Desktop\init.dll",#1

      Test run
    2. Evidence 3 of 4: ProcessSeen in the test run

      loaddll64.exe

      C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\init.dll"

      Test run
    3. +1 more recorded observation

  3. Files

    Created or changed

    1
    1. 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.

Chapter 04

Technical details

1 of the 68 antivirus engines that checked it flags it; a signature that did not verify.

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.

SourceStatusResultChecked
Antivirus enginesVirusTotal · 75 enginesCompleteRisk signal: 1 of 68 engines flagged it · 7 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesCompleteCombined summary: clean verdict Details for sandbox run
Contacted hostsMalwareTips URL scannerNot neededThe sandbox recorded no contacted hosts to checkNo date recorded
Signature rulesYARAify community rules + MalwareTips rulesComplete1 MalwareTips behaviour rule Details for signature rules
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompleteNo match

Engines that flagged it 1

  • Microsoft (major engine)Trojan:Win32/Posilod.EB!cl

File fingerprint

Last analyzed
Oct 16, 2026, 4:54 PM UTC
SHA-256
e0b699f4d85df5e799d3aba0dfd2e79d5caee20f253b6413037aed253f17e790
SHA-1
c7409cb08ff1923b8f95cae3b50fb8400c102485
MD5
1cfe4a1697ffe19a03066f8c1d888714

About this file

AfterFXLib.dll is a Win32 DLL file of 49.3 MB.

Type and size
Win32 DLL · 49.3 MB
Signer
Adobe Inc. (unverified signature)Worth noting: Malware sometimes copies or steals a company's signature, so this does not mean that company made it.
First seen
Sep 16, 2026On VirusTotal.
Submitted by
21 distinct sources
Packer
None detected
Entropy
6.50 of 8

First scanned

Chapter 05

Questions & answers

Short answers to the 7 questions people ask most about this file.

Is AfterFXLib.dll safe, or is it malware?
AfterFXLib.dll is rated Suspicious: some signs point to a problem, but nothing confirms it is harmful. 1 of the 68 antivirus engines that checked it flags it, most as Posilod. Don't use it unless you're sure where it came from. If a program needs this file, reinstall that program from its official website instead of replacing the file on its own.
What is AfterFXLib.dll?
AfterFXLib.dll is a Windows library (DLL), about 49.3 MB. It carries no version information saying what it is or who made it. VirusTotal first saw it on Sep 16, 2026.
How many antivirus engines detected AfterFXLib.dll?
1 of the 68 antivirus engines that checked it flags AfterFXLib.dll (Microsoft). We weigh which engines flagged it and what else the scan found, not just the count.
I already downloaded and used AfterFXLib.dll — what should I do?
No infection is confirmed: the rating is a caution, not a malware finding. 1) Check where it came from. If you can't confirm the source, delete it. 2) Run a full scan with your security software. 3) If the scan finds something, follow its removal steps and change passwords you typed on the device since then.
Is AfterFXLib.dll digitally signed?
It carries a signature in the name of Adobe Inc. that could not be verified. Malware sometimes copies or steals a company's signature, so this does not mean that company made it.
What is the SHA-256 hash of AfterFXLib.dll?
The SHA-256 fingerprint of AfterFXLib.dll is e0b699f4d85df5e799d3aba0dfd2e79d5caee20f253b6413037aed253f17e790, and its MD5 is 1cfe4a1697ffe19a03066f8c1d888714. Two files with the same SHA-256 are identical, so use it to check you have exactly this file, not just one with the same name.
How up to date is this analysis of AfterFXLib.dll?
This report reflects the scan on Oct 16, 2026. A file's fingerprint never changes, but antivirus engines keep learning, so a rating can change later. To get a newer result, scan the file again: we refresh the antivirus results when the saved ones are out of date.
Chapter 06

Community

Member reviews and reports for this exact file hash.

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Recent reports on other files with the same rating.

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This report and its SHA-256 fingerprint are public, so the next person who checks the same file gets an instant answer; documents and images are listed by type instead of their file name. A file we had not seen before is uploaded to VirusTotal, whose security partners and subscribers can download it; MalwareTips deletes its own copy after the scan. If you ran this file and are worried, scan your device with up-to-date security software.