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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:
50.0.6.326

MD5:
8f51bf57b1213663775f0c3dd32d1aaf

SHA-1:
edb56645a6f067f57a5ce3bb4ff466a8855fb38f

SHA-256:
c672cafd26d376b95c5f15cd8589e9fa7b8812ebbcbbb18535c5e9c7e000fe08

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 3:02:12 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
16.12.29.14

File size:
178.6 KB (182,903 bytes)

Product version:
50.0.6.326

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:
12/2/2016 6:00:00 AM

Valid to:
8/19/2017 5:59:59 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:
426B9B1A32F1FA79A1D4E4E61168E69A

File PE Metadata
Compilation timestamp:
12/5/2016 3:25:41 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x60B1

Entry point:
E9, 5D, 53, 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:
7.2240

Packer / compiler:
Xtreme-Protector v1.05

Code size:
66 KB (67,584 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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