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firefoxupdate.exe

Firefox

Wenchao Zhang

The application firefoxupdate.exe by Wenchao Zhang 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:
Wenchao Zhang  (signed and verified)

Product:
Firefox

Version:
47.0.50.218

MD5:
a9245128de0c93d49f0c0f9dc71196e3

SHA-1:
6c72f7095d5880b814bafd56000dbd25882a754e

SHA-256:
3ac01629f75da5459cc83a1d170a7e7a77506301ba2ec160d9095169d0d99d9d

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
12/25/2024 5:47:04 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex (M)
16.12.22.12

File size:
597.1 KB (611,455 bytes)

Product version:
47.0.50.218

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:
Wenchao Zhang

Authority:
thawte, Inc.

Valid from:
10/13/2016 6:00:00 AM

Valid to:
6/9/2017 5:59:59 AM

Subject:
CN=Wenchao Zhang, 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:
435967CF8A9242810791B82F07AF2DEF

File PE Metadata
Compilation timestamp:
10/13/2016 3:45:42 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x3F85C

Entry point:
E9, 6C, E8, FE, FF, E9, 8E, FE, FF, FF, FF, 25, 64, 43, 46, 00, 8B, 4D, F4, 64, 89, 0D, 00, 00, 00, 00, 59, 5F, 5F, 5E, 5B, 8B, E5, 5D, 51, F2, C3, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53, 56, 57, 89, 28, 8B, E8, A1, 70, 00, 48, 00, 33, C5, 50, FF, 75, FC, C7, 45, FC, FF, FF, FF, FF, 8D, 45, F4, 64, A3, 00, 00, 00, 00, F2, C3, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53, 56, 57, 89, 28, 8B, E8, A1, 70, 00, 48, 00, 33, C5, 50, 89, 65, F0, FF, 75, FC, C7, 45...
 
[+]

Entropy:
6.6894

Packer / compiler:
Xtreme-Protector v1.05

Code size:
394.5 KB (403,968 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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