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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:
47.0.53.225

MD5:
7c6633967bacea0afd52177f27b25404

SHA-1:
b709fe4e7218842224a0a258e92b66a3b241cee0

SHA-256:
4f91b16ea008d277c81ef7383c6f2f655cfb5df52698cf91f6343ada86481090

Scanner detections:
4 / 68

Status:
Malware

Analysis date:
1/11/2025 2:54:40 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:
584.1 KB (598,135 bytes)

Product version:
47.0.53.225

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:
10/19/2016 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:
3CED0BDE89F0F6D9E1DD710ACB0F0794

File PE Metadata
Compilation timestamp:
10/20/2016 9:44:04 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
12288:P867/c2u0JJb7KJRaO4CuAkKwweoBjvrEH7yS:UMJ9O/uAkxLarEH7yS

Entry address:
0x3C79A

Entry point:
E9, 59, 17, FF, FF, E9, 8E, FE, FF, FF, FF, 25, 4C, 13, 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, D0, 47, 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, D0, 47, 00, 33, C5, 50, 89, 65, F0, FF, 75, FC, C7, 45...
 
[+]

Entropy:
6.7042

Packer / compiler:
tElock 0.99 - 1.0 private

Code size:
382 KB (391,168 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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