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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:
50.1.12.445

MD5:
bc47e9c91d858607b2296bea39ba87d3

SHA-1:
531e8ba5e8fdd339107c9169c18cca8bfa468ba7

SHA-256:
1fbbfd86533b45af9b6dbee0df17016836eb22dec78e1c46d548abcec271e3c4

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 12:09:02 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
17.3.11.16

File size:
233.6 KB (239,223 bytes)

Product version:
50.1.12.445

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:
1/12/2017 4:00:00 PM

Valid to:
8/18/2017 4:59:59 PM

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:
2/6/2017 10:16:57 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x6250

Entry point:
E9, EE, 6E, 00, 00, E9, 8E, FE, FF, FF, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, B8, 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, 85, 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, 8D, 41, 04, C7, 01, 38, 32, 41, 00, 50, E8, A1, 20, 00, 00, 59...
 
[+]

Entropy:
6.7235

Packer / compiler:
Xtreme-Protector v1.05

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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