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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:
50.0.8.335

MD5:
bc2636b7fe8b939f7d2b9ecb6ff5b0df

SHA-1:
19799b91190caa6efc6bc8963ff8e18e5b4f9db1

SHA-256:
44077731aaa603eeb3c5a6fab4eef73dc9f9212f2aa7ff8c81b8532e3650c95a

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 2:42:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
16.12.13.14

File size:
180.1 KB (184,439 bytes)

Product version:
50.0.8.335

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:
12/11/2016 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:
479B85850805F08E08FDB90E6CF6EE69

File PE Metadata
Compilation timestamp:
12/11/2016 10:26:52 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x60B1

Entry point:
E9, 3B, 68, 00, 00, E9, 8E, FE, FF, FF, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 58, 00, 00, 00, C7, 06, B4, 21, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, BC, 21, 41, 00, C7, 01, B4, 21, 41, 00, C3, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 25, 00, 00, 00, C7, 06, D0, 21, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, D8, 21, 41, 00, C7, 01, D0, 21, 41, 00, C3, 55, 8B, EC, 56, 8B, F1, 8D, 46, 04, C7, 06, 94, 21, 41, 00, 83...
 
[+]

Entropy:
7.2227

Packer / compiler:
Xtreme-Protector v1.05

Code size:
67 KB (68,608 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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