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firefoxupdate.exe

Firefox

Chao Wei

The executable firefoxupdate.exe has been detected as malware by 3 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:
47.0.51.220

MD5:
56dc332e65d09209ad3651a745357f29

SHA-1:
db81d8782eb4054d9bce592981b8fca4b4f3448f

SHA-256:
5a6b734984b39a6c88fb275977499ff9d5c5ed5f49b5daf48651fa866f8a9e26

Scanner detections:
3 / 68

Status:
Malware

Analysis date:
1/11/2025 2:35:08 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

File size:
594.6 KB (608,887 bytes)

Product version:
47.0.51.220

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:
10/11/2016 5:00:00 PM

Valid to:
8/18/2017 4:59:59 PM

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:
1200A32740619CA13B6BFBD91984402C

File PE Metadata
Compilation timestamp:
10/17/2016 12:59:34 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
12288:df4NusWIVqFGOhgxsfI3X/PQeq+pdFOtTSXBjvrEH7mAu:KN7Egol+pTOYrEH7mF

Entry address:
0x3F026

Entry point:
E9, AE, F4, 00, 00, E9, 8E, FE, FF, FF, FF, 25, 64, 33, 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, F0, 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, F0, 47, 00, 33, C5, 50, 89, 65, F0, FF, 75, FC, C7, 45...
 
[+]

Entropy:
6.6918

Packer / compiler:
Xtreme-Protector v1.05

Code size:
392 KB (401,408 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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