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firefoxupdate.exe

Firefox

Chao Wei

The application firefoxupdate.exe by Chao Wei has been detected as a potentially unwanted program by 2 anti-malware 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:
47.0.52.223

MD5:
7b1d043864b5154de499af117adc68bb

SHA-1:
610dd6c66391e04e5ff81f9b53433e90520af300

Scanner detections:
2 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 2:35:07 AM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/Obfuscated.NIS trojan
6.3.12010.0

Reason Heuristics
Adware.Elex.Chao (M)
16.11.2.23

File size:
519.2 KB (531,632 bytes)

Product version:
47.0.52.223

Copyright:
Copyright (C) 2016 Firefox Authors

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\firefox\bin\firefoxupdate.exe

Digital Signature
Signed by:
Chao Wei

Authority:
thawte, Inc.

Valid from:
10/19/2016 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:
3CED0BDE89F0F6D9E1DD710ACB0F0794

File PE Metadata
Compilation timestamp:
10/19/2016 11:54:13 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
6144:0UshNywFASDGaO/vMKN5KA085D3EFmdFspRf8CYcoytVRoAO88GSrQyP:0UwNr9DGdvMKN5KZE0mdKXf8Bytwo8P

Entry address:
0x3F049

Entry point:
E8, 87, 05, 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:
6.3724

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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