GridinSoft Threat Intelligence

YandexWorking.exe threat report

Detected as PUP.YandexPin File reputation report
MD5 39d90423a077fe4671eca4899c02e2e6
Latest seen 2026-04-24 23:01:17 (a month ago)
First seen 2025-07-03 23:01:15 (10 months ago)
Size 633 KB
Product YandexPin
Signed by YANDEX LLC

GridinSoft Anti-Malware detection

Detected by GridinSoft before you download

The current ThreatInfo record shows this exact file hash detected as PUP.YandexPin. Download GridinSoft Anti-Malware to scan the device, confirm whether this file is present, and remove the detected object if it is found.

Detection name
PUP.YandexPin
Recommended action
Scan and remove
Last analysis
2026-04-24 23:01:17 (a month ago)
File hash
39d90423a077fe4671eca4899c02e2e6
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as PUP.YandexPin, part of the PUP threat category.

Category context

Potentially unwanted programs, bundlers, installers, and utilities with intrusive behavior. Related PUP reports help compare this file with nearby detections, publishers, and hashes.

Timeline

First seen 2025-07-03 23:01:15 (10 months ago); latest analysis 2026-04-24 23:01:17 (a month ago).

Publisher context

Product metadata: YandexPin.

Digital signature

Signed by YANDEX LLC. 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. Compare the MD5 above with the file found on the device.
  2. Check whether the file appears in the observed locations or under one of the alternate names.
  3. Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present. Review the PUP category for related samples and common context.

YandexWorking.exe is a Windows file recorded in the ThreatInfo database. It is associated with YandexPin. The current detection status is PUP.YandexPin, based on the latest analysis from 2026-04-24 23:01:17 (a month ago). ThreatInfo groups this verdict with PUP reports for broader family-level investigation.

If YandexWorking.exe appears on your computer unexpectedly, treat it as suspicious. Check its location, digital signature, and recent system changes before allowing it to run. A full anti-malware scan is recommended when this file is detected as PUP.YandexPin.

Product Name: YandexPin
MD5: 39d90423a077fe4671eca4899c02e2e6
Size: 633 KB
First Published: 2025-07-03 23:01:15 (10 months ago)
Latest Published: 2026-04-24 23:01:17 (a month ago)
Status: PUP.YandexPin (on last analysis)
Analysis Date: 2026-04-24 23:01:17 (a month ago)
YandexWorking.exe detection screenshot

The screenshot is a visual record of a GridinSoft Anti-Malware detection for this sample. Use the hash and metadata above as the primary identifiers when comparing the file on your system.

Signed By: YANDEX LLC
Status: Valid

The signature on YandexWorking.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.

%localappdata%\yandex

ThreatInfo has observed YandexWorking.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 10 100.0%

The most common operating system signal for YandexWorking.exe 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.

YandexWorking.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 0x0003e090
Image base 0x00400000

PE Sections:

Sections 7
Raw data 632320

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

.text 408576 bytes · 64.6% of section data
MD5 1db9c3e38f19796bbf10561b042c6563
.rdata 69120 bytes · 10.9% of section data
MD5 b03dec491845c6787b4ce27f6a2a1a84
.data 8192 bytes · 1.3% of section data
MD5 ff56cc898f4326f8ae27223c5c812c86
.fptable 512 bytes · 0.1% of section data
Uncommon name
MD5 bf619eac0cdf3f68d496ea9344137e8b
.tls 512 bytes · 0.1% of section data
MD5 1f354d76203061bfdd5a53dae48d5435
.rsrc 127488 bytes · 20.2% of section data
MD5 ea3f817d520de28d41d5d9410b77a243
.reloc 17920 bytes · 2.8% of section data
MD5 282ee648a72b69bd9a40096d824eed90

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

GridinSoft detects this file as PUP.YandexPin

This report identifies YandexWorking.exe by MD5 39d90423a077fe4671eca4899c02e2e6. It is part of the PUP report group. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.

Download GridinSoft Anti-Malware Scan the device and confirm whether this exact hash is present. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 39d90423a077fe4671eca4899c02e2e6.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan and remove the object if the same hash is found. Use the PUP category to compare similar reports.