GridinSoft Threat Intelligence

ytbn.exe file report

Under review File reputation report
MD5 51e07a474a2a0403d06a8c9fdc210b39
Latest seen 2021-12-08 21:59:47 (4 years ago)
First seen 2017-08-09 05:04:50 (8 years ago)
Size 159 KB
Publisher Yahoo! Inc.
Signed by Yahoo! Inc.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2017-08-09 05:04:50 (8 years ago); latest analysis 2021-12-08 21:59:47 (4 years ago).

Publisher context

Company metadata: Yahoo! Inc.. Product metadata: Yahoo! Toolbar Notifier.

Digital signature

Signed by Yahoo! Inc.. 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.

ytbn.exe is a Windows file recorded in the ThreatInfo database. It is associated with Yahoo! Toolbar Notifier. The reported company name is Yahoo! Inc.. The current detection status is Undefined, based on the latest analysis from 2021-12-08 21:59:47 (4 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.

Product Name: Yahoo! Toolbar Notifier
Company Name: Yahoo! Inc.
MD5: 51e07a474a2a0403d06a8c9fdc210b39
Size: 159 KB
First Published: 2017-08-09 05:04:50 (8 years ago)
Latest Published: 2021-12-08 21:59:47 (4 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-12-08 21:59:47 (4 years ago)
Signed By: Yahoo! Inc.
Status: Valid

The signature on ytbn.exe 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%\yahoo!\companion\installs\cpn11
%programfiles%\yahoo!\companion\installs\cpn1
%programfiles%\yahoo!\companion\installs\cpn4
%programfiles%\yahoo!\companion\installs\cpn9
%programfiles%\yahoo!\companion\installs\cpn14
%programfiles%\yahoo!\companion\installs\cpn2
%programfiles%\yahoo!\companion\installs\cpn10
%programfiles%\yahoo!\companion\installs\cpn8
%programfiles%\yahoo!\companion\installs\cpn3
%programfiles%\yahoo!\companion\installs\cpn6

ThreatInfo has observed ytbn.exe 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 7 50.8%
Windows 10 39.0%
Windows XP 8.5%
Windows 8.1 1.7%

The most common operating system signal for ytbn.exe is Windows 7 with 50.8% 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.

ytbn.exe is identified as pe for 32-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 32-bit
Subsystem Windows GUI
Entry point 0x0000ce0f
Image base 0x00400000

PE Sections:

Sections 5
Raw data 156160

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

.text 109568 bytes · 70.2% of section data
MD5 290377acac4effa923d8374f81c3078e
.rdata 25088 bytes · 16.1% of section data
MD5 832183d422514504134be179f0b78ce5
.data 5632 bytes · 3.6% of section data
MD5 6f247bce9c74bffe7d86a27a5276d8b2
.rsrc 6144 bytes · 3.9% of section data
MD5 6f0544cd55afb96cb51af511f5824d6e
.reloc 9728 bytes · 6.2% of section data
MD5 cc0825c44cf3bf090d54869fe7ba3859

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 51e07a474a2a0403d06a8c9fdc210b39.
  • 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.