GridinSoft Threat Intelligence

yt.dll.$quar file report

Under review File reputation report
MD5 10555a800613c8613af53fad54f1c23f
Latest seen 2024-06-12 23:01:34 (2 years ago)
First seen 2017-08-10 00:04:17 (8 years ago)
Size 789 KB
Publisher Yahoo! Inc.
Product Yahoo! Toolbar
Signed by Yahoo! Inc.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2017-08-10 00:04:17 (8 years ago); latest analysis 2024-06-12 23:01:34 (2 years ago).

Publisher context

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

Digital signature

Signed by Yahoo! Inc.. The signature is reported as valid, but signed files can still be bundled or abused.

Aliases

This hash has appeared under multiple file names, which can happen with repackaging, bundling, or deliberate renaming.

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.

yt.dll.$quar is a Windows file recorded in the ThreatInfo database. It is associated with Yahoo! Toolbar. The reported company name is Yahoo! Inc.. The current detection status is Undefined, based on the latest analysis from 2024-06-12 23:01:34 (2 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
Company Name: Yahoo! Inc.
MD5: 10555a800613c8613af53fad54f1c23f
Size: 789 KB
First Published: 2017-08-10 00:04:17 (8 years ago)
Latest Published: 2024-06-12 23:01:34 (2 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2024-06-12 23:01:34 (2 years ago)
Signed By: Yahoo! Inc.
Status: Valid

The signature on yt.dll.$quar 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\cpn
%programfiles%\yahoo!\companion\installs\cpn0
%programfiles%\yahoo!\companion\installs

ThreatInfo has observed yt.dll.$quar 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.

yt.dll yt.dll.$quar

This hash has been seen with multiple file names. Alternate names can appear when software is updated, copied between folders, packed by an installer, or deliberately renamed to avoid recognition. Compare the exact MD5 above before assuming two names refer to the same file.

Windows 7 41.0%
Windows 10 32.9%
Windows XP 14.9%
Windows Vista 3.7%
Windows 8.1 3.7%
Windows 8 3.7%

The most common operating system signal for yt.dll.$quar is Windows 7 with 41.0% 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.

yt.dll.$quar 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 0x0007bd05
Image base 0x62900000

PE Sections:

Sections 5
Raw data 801792

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

.text 580096 bytes · 72.3% of section data
MD5 b9981e2a10e02ef63c922a46f0b52637
.rdata 118272 bytes · 14.8% of section data
MD5 c7da86704a6aa3ccf284f6b2a26b16b5
.data 25600 bytes · 3.2% of section data
MD5 0e2455e0b93c1a846c43910fd19aea86
.rsrc 34304 bytes · 4.3% of section data
MD5 c3efb38dfb7417d234f1dab419276be3
.reloc 43520 bytes · 5.4% of section data
MD5 922d28b391588f2a4416476f6bb22a38

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 10555a800613c8613af53fad54f1c23f.
  • 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.