GridinSoft Threat Intelligence

Rebex.Smtp.dll file report

Under review File reputation report
MD5 3bcdb63cfe72046b016c658c0da61f45
Latest seen 2022-12-25 23:58:42 (3 years ago)
First seen 2022-11-02 23:38:05 (3 years ago)
Size 107 KB
Publisher Rebex CR, s.r.o.
Signed by Rebex ČR s.r.o.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Category context

Riskware and dual-use utilities that may be legitimate but require careful review. Related Risk reports help compare this file with nearby detections, publishers, and hashes.

Timeline

First seen 2022-11-02 23:38:05 (3 years ago); latest analysis 2022-12-25 23:58:42 (3 years ago).

Publisher context

Company metadata: Rebex CR, s.r.o.. Product metadata: Rebex Secure Mail (Full).

Digital signature

Signed by Rebex ČR s.r.o.. 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.

Rebex.Smtp.dll is a Windows file recorded in the ThreatInfo database. It is associated with Rebex Secure Mail (Full). The reported company name is Rebex CR, s.r.o.. The current detection status is Undefined, based on the latest analysis from 2022-12-25 23:58:42 (3 years ago). ThreatInfo groups this verdict with Risk reports for broader family-level investigation.

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.

Product Name: Rebex Secure Mail (Full)
Company Name: Rebex CR, s.r.o.
MD5: 3bcdb63cfe72046b016c658c0da61f45
Size: 107 KB
First Published: 2022-11-02 23:38:05 (3 years ago)
Latest Published: 2022-12-25 23:58:42 (3 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2022-12-25 23:58:42 (3 years ago)
Signed By: Rebex ČR s.r.o.
Status: Valid

The signature on Rebex.Smtp.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.

%programfiles%

ThreatInfo has observed Rebex.Smtp.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.

Windows 10 100.0%

The most common operating system signal for Rebex.Smtp.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.

Rebex.Smtp.dll is identified as pe for 32-bit systems. The subsystem is Windows CUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Format pe
Architecture 32-bit
Subsystem Windows CUI
Entry point 0x000185de
Image base 0x00400000

.NET Info:

MVID: 7232dcd6-d7f7-41c2-a413-9ae52402e7af
Typelib ID: 79372967-8086-46cd-b879-bad82a194217

PE Sections:

Sections 3
Raw data 96256

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

.text 91648 bytes · 95.2% of section data
MD5 6514f73267bb0cf104a18e821d73dc30
.rsrc 4096 bytes · 4.3% of section data
MD5 1a1859805aa5f23558ee24f88312644b
.reloc 512 bytes · 0.5% of section data
MD5 525e0c6a8a745ca53476771fb86a0241

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 3bcdb63cfe72046b016c658c0da61f45.
  • 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. Use the Risk category to compare similar reports.