GridinSoft Threat Intelligence
WcInstaller.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as PUP.WebCompanion. 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.WebCompanion
- Recommended action
- Scan and remove
- Last analysis
- 2021-01-14 19:20:48 (5 years ago)
- File hash
- f2d7aa9408a0fa7ea9c47bdeb43bdfd3
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as PUP.WebCompanion, part of the PUP threat category.
Potentially unwanted programs, bundlers, installers, and utilities with intrusive behavior. Related PUP reports help compare this file with nearby detections, publishers, and hashes.
First seen 2019-03-20 20:00:12 (7 years ago); latest analysis 2021-01-14 19:20:48 (5 years ago).
Company metadata: Lavasoft. Product metadata: Web Companion Installer.
Signed by Lavasoft Limited. The signature is reported as valid, but signed files can still be bundled or abused.
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
- Compare the MD5 above with the file found on the device.
- Check whether the file appears in the observed locations or under one of the alternate names.
- 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.
File context
WcInstaller.exe is a Windows file recorded in the ThreatInfo database. It is associated with Web Companion Installer. The reported company name is Lavasoft. The current detection status is PUP.WebCompanion, based on the latest analysis from 2021-01-14 19:20:48 (5 years ago). ThreatInfo groups this verdict with PUP reports for broader family-level investigation.
If WcInstaller.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.WebCompanion.
File Details
| Product Name: | Web Companion Installer |
| Company Name: | Lavasoft |
| MD5: | f2d7aa9408a0fa7ea9c47bdeb43bdfd3 |
| Size: | 346 KB |
| First Published: | 2019-03-20 20:00:12 (7 years ago) |
| Latest Published: | 2021-01-14 19:20:48 (5 years ago) |
| Status: | PUP.WebCompanion (on last analysis) | |
| Analysis Date: | 2021-01-14 19:20:48 (5 years ago) |
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.
Overview
| Signed By: | Lavasoft Limited |
| Status: | Valid |
The signature on WcInstaller.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.
Common Places:
| %windir%\temp |
| %temp% |
| %sysdrive%\windows.old\windows\temp |
| %sysdrive%\$recycle.bin\s-1-5-21-1697719296-2569830236-3840770286-1000 |
ThreatInfo has observed WcInstaller.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.
Geographic signal
Observed country distribution
ThreatInfo has seen WcInstaller.exe across 37 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Brazil with 17.8% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.
OS Version:
The most common operating system signal for WcInstaller.exe is Windows 7 with 69.9% 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
WcInstaller.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.
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
8c9346b8cd91e8d7aa2e1586eb1a1b30
5e256dc61db6deff01801e77de19d038
1d347e5500f0d4c5672ba18282b866f7
35925cfdc1176bd9ffc634a58b40ec17
49c72b974ad41c770120075c44c4fbba
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.WebCompanion
This report identifies WcInstaller.exe by MD5 f2d7aa9408a0fa7ea9c47bdeb43bdfd3. 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.