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firefoxupdate.exe

Firefox

Chao Wei

The application firefoxupdate.exe by Chao Wei has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “Update Service(FirefoxU)”.
Publisher:
Chao Wei  (signed and verified)

Product:
Firefox

Version:
51.0.7.561

MD5:
4c1a3feab7c7d836a3c3b5ca83459b61

SHA-1:
7de1895cc5833d029a7021ba57b1d398af7b4a12

SHA-256:
4162efc29ec4ac9a86fb912cefed6c58e059aea95aecae0538e65808d7176b12

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/10/2025 11:55:20 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
17.3.13.11

File size:
163.7 KB (167,600 bytes)

Product version:
51.0.7.561

Copyright:
Copyright (C) 2016 Firefox Authors

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\Program Files\firefox\bin\firefoxupdate.exe

Digital Signature
Signed by:
Chao Wei

Authority:
thawte, Inc.

Valid from:
1/13/2017 1:00:00 AM

Valid to:
8/19/2017 1:59:59 AM

Subject:
CN=Chao Wei, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
45A8458D05878B9FE97F9367F3956CDE

File PE Metadata
Compilation timestamp:
2/27/2017 3:57:56 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x632D

Entry point:
E8, 89, 04, 00, 00, E9, 8E, FE, FF, FF, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 9B, F5, FF, FF, C7, 06, 44, 32, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, 4C, 32, 41, 00, C7, 01, 44, 32, 41, 00, C3, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 68, F5, FF, FF, C7, 06, 60, 32, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, 68, 32, 41, 00, C7, 01, 60, 32, 41, 00, C3, 55, 8B, EC, 83, EC, 0C, 8D, 4D, F4, E8, DA, FF, FF, FF, 68, 54...
 
[+]

Entropy:
5.9168

Code size:
72 KB (73,728 bytes)

Service
Display name:
Update Service(FirefoxU)

Service name:
FirefoxU

Description:
Keeps your Firefox software up to date. If this service is disabled or stopped, your Firefox software will not be kept up to date, meaning security vulnerabilities that may arise cannot be fixed and f

Type:
Win32OwnProcess

Depends on:
RpcSs


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