GridinSoft Threat Intelligence

RtCOM64.dll file report

Under review File reputation report
MD5 8f516094ab48abe38e69ade00b68421a
Latest seen 2021-04-07 20:44:47 (5 years ago)
First seen 2021-02-17 04:27:22 (5 years ago)
Size 1 MB
Publisher Realtek Semiconductor Corp.
Product RTCOMDLL Module
Signed by Realtek Semiconductor Corp.;Microsoft Windows Hardware Compatibility Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2021-02-17 04:27:22 (5 years ago); latest analysis 2021-04-07 20:44:47 (5 years ago).

Publisher context

Company metadata: Realtek Semiconductor Corp.. Product metadata: RTCOMDLL Module.

Digital signature

Signed by Realtek Semiconductor Corp.;Microsoft Windows Hardware Compatibility Publisher. The signature is reported as valid, but signed files can still be bundled or abused.

Observed locations

ThreatInfo has seen this file in user or system paths listed below. Unexpected locations increase the need for local verification.

Recommended action

What to do next

  1. Use the hash and metadata below to verify the exact file identity.
  2. Review publisher, signature, paths, and PE details for inconsistencies.
  3. Run a local scan if the file appears unexpectedly or starts with Windows.

File context

RtCOM64.dll is a Windows file recorded in the ThreatInfo database. It is associated with RTCOMDLL Module. The reported company name is Realtek Semiconductor Corp.. The current detection status is Undefined, based on the latest analysis from 2021-04-07 20:44:47 (5 years ago).

ThreatInfo does not have a final classification for this file yet. Use the technical details below to compare the hash, size, signature, and observed locations with the copy found on your device.

File Details

Product Name: RTCOMDLL Module
Company Name: Realtek Semiconductor Corp.
MD5: 8f516094ab48abe38e69ade00b68421a
Size: 1 MB
First Published: 2021-02-17 04:27:22 (5 years ago)
Latest Published: 2021-04-07 20:44:47 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-04-07 20:44:47 (5 years ago)

Overview

Signed By: Realtek Semiconductor Corp.;Microsoft Windows Hardware Compatibility Publisher
Status: Valid

The signature on RtCOM64.dll is reported as valid. A valid signature helps confirm publisher identity, but it does not automatically make the file safe if the installer was bundled, abused, or downloaded from an untrusted source.

Common Places:

%commonappdata%\winzip\winzip driver updater\downloads\85
%commonappdata%\winzip\winzip driver updater\downloads\c219f4e4-1f18-4730-b8c7-8fb2b723a83e

ThreatInfo has observed RtCOM64.dll in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.

Geographic signal

Observed country distribution

ThreatInfo has seen RtCOM64.dll across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country United Kingdom
Share 100.0%
Low High activity

The strongest geographic signal for this file is United Kingdom with 100.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 10 100.0%

The most common operating system signal for RtCOM64.dll is Windows 10 with 100.0% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.

Analysis

RtCOM64.dll is identified as pe for 64-bit systems. The subsystem is Windows GUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Format pe
Architecture 64-bit
Subsystem Windows GUI
Entry point 0x00041ea4
Image base 0x0000000180000000

PE Sections:

Sections 6
Raw data 1097728

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

.text 363520 bytes · 33.1% of section data
MD5 5cb6881b64d991ffa677a06eae6721a7
.rdata 150016 bytes · 13.7% of section data
MD5 cb8e31ab08ee6ce16106aa6fec708030
.data 26624 bytes · 2.4% of section data
MD5 af5a6a0f7e6dae30f25d91813e4b884b
.pdata 22016 bytes · 2.0% of section data
MD5 1dca30d9a55715f8e166ebb79f0f4548
.rsrc 528896 bytes · 48.2% of section data
MD5 53ec56ce192a284c6341915e81cddad8
.reloc 6656 bytes · 0.6% of section data
MD5 3ed7770e3594b18f6a99781afa1ff59a

PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.

Report conclusion

This file is still under review

ThreatInfo has not assigned a final verdict yet. Compare the file hash, location, signature, and publisher before trusting the file on a production system.

Scan with GridinSoft Anti-Malware Use a local scan if the file origin or behavior is unclear. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 8f516094ab48abe38e69ade00b68421a.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan if the source, path, or behavior looks unusual.