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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:
51.0.4.545

MD5:
f0798d632faff92282ace51e8a585a87

SHA-1:
34916112d655ceb722b5ee5af0e710fbf397b757

SHA-256:
55acee6ee3c5795c5b4d7738c6064aa088279c722a6b999e2c805313688ee5b1

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/10/2025 5:51:55 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
17.2.17.7

File size:
159.2 KB (162,992 bytes)

Product version:
51.0.4.545

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 7:00:00 AM

Valid to:
8/19/2017 6:59:59 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:
2/17/2017 9:00:19 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x626D

Entry point:
E8, 39, 04, 00, 00, E9, 8E, FE, FF, FF, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 9B, F5, FF, FF, C7, 06, 54, 42, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, 5C, 42, 41, 00, C7, 01, 54, 42, 41, 00, C3, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 68, F5, FF, FF, C7, 06, 70, 42, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, 78, 42, 41, 00, C7, 01, 70, 42, 41, 00, C3, 55, 8B, EC, 83, EC, 0C, 8D, 4D, F4, E8, DA, FF, FF, FF, 68, 5C...
 
[+]

Entropy:
5.8129

Code size:
73.5 KB (75,264 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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