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firefoxupdate.exe

Firefox

Chao Wei

The executable firefoxupdate.exe has been detected as malware by 4 anti-virus scanners. 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:
47.0.57.233

MD5:
ce0f43ff7e60f46826fa46f461595178

SHA-1:
d67906391332532dad20dc01096a4bb3ea1e91f6

SHA-256:
2cb8aff899f60e9c954b339dc6c309b0d37752b24db289f4e4d373ab67453a3f

Scanner detections:
4 / 68

Status:
Malware

Analysis date:
1/11/2025 2:08:38 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Win32/Floxif.A
2013.0.4477

ESET NOD32
Win32/Floxif.H virus
6.3.12010.0

F-Prot
W32/Floxif.B
4.6.5.141

F-Secure
Win32.Floxif.A
5.15.154

File size:
188.1 KB (192,631 bytes)

Product version:
47.0.57.233

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:
10/26/2016 8:00:00 AM

Valid to:
8/19/2017 7:59:59 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:
1D31975C6FA7D059391E8CB150FFC16E

File PE Metadata
Compilation timestamp:
10/27/2016 10:55:15 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
3072:7vFzr8cAn8FJ7JitdeHZJtK43qXsb3uHr2lQBV+UdE+rECWp7hKs:7FI87UQLb+PBV+UdvrEFp7hKs

Entry address:
0x7625

Entry point:
E9, 62, BE, FF, FF, 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:
7.2311

Packer / compiler:
tElock 0.99 - 1.0 private

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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