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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:
49.0.5.310

MD5:
88a49a4febba8f43a225ad5bfaad69f9

SHA-1:
3854eb2fc490bb80d14c3e1d2add255b30b07ef4

SHA-256:
d0d4f9a956523517236d3ad9c4a1ba5183b7b6870039ca02d7d5022d1847f06d

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 1:54:38 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
16.11.16.9

File size:
111.7 KB (114,352 bytes)

Product version:
49.0.5.310

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:
11/1/2016 12:00:00 AM

Valid to:
8/19/2017 12:59:59 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:
1579BADCC703A48CF6490B89F550201D

File PE Metadata
Compilation timestamp:
11/16/2016 6:06:21 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
3072:REFzrwcTvWqJeCytSdHK53K43k6CsDZuk7:RM0YeAelhDEU

Entry address:
0x76A5

Entry point:
E8, 71, 04, 00, 00, E9, 8E, FE, FF, FF, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 58, 00, 00, 00, C7, 06, B4, 31, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, BC, 31, 41, 00, C7, 01, B4, 31, 41, 00, C3, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 25, 00, 00, 00, C7, 06, D0, 31, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, D8, 31, 41, 00, C7, 01, D0, 31, 41, 00, C3, 55, 8B, EC, 56, 8B, F1, 8D, 46, 04, C7, 06, 94, 31, 41, 00, 83...
 
[+]

Entropy:
6.4213

Code size:
71 KB (72,704 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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