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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:
3e0bbb6d5f6e7ff481c3181b3824e2ed

SHA-1:
6af91637a0a2db6616a11affc3ad5679e7afc7b5

SHA-256:
607d804601effb12b0c4468e2ca28b325686d3ed61fc16c87c55eaf06c6253e7

Scanner detections:
4 / 68

Status:
Malware

Analysis date:
1/11/2025 2:08:59 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 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:
1D31975C6FA7D059391E8CB150FFC16E

File PE Metadata
Compilation timestamp:
10/27/2016 8:55:15 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
3072:iBBFzr8cAnGFJ7JitdeHj5K43qXsb3uHr2lQBV+UdE+rECWp7hKAFg:iBXI27UubLb+PBV+UdvrEFp7hKAFg

Entry address:
0x7625

Entry point:
E9, E1, A7, 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:
7.2195

Packer / compiler:
Xtreme-Protector v1.05

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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