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firefoxupdate.exe

Firefox

Wenchao Zhang

The application firefoxupdate.exe by Wenchao Zhang has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “Update Service(FirefoxU)”.
Publisher:
Wenchao Zhang  (signed and verified)

Product:
Firefox

Version:
47.0.50.218

MD5:
d64fc50113c09ac3e44ec46026b2fb2c

SHA-1:
f140e8b91398c0ca23d22c9df1f41b493e9994f6

SHA-256:
3a063c6b145d282bd9708c6ebbc4dde33e6db6820bde31e4a6b859766a7d6a20

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
11/7/2024 9:13:24 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex (M)
16.10.22.5

File size:
520.7 KB (533,176 bytes)

Product version:
47.0.50.218

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:
Wenchao Zhang

Authority:
thawte, Inc.

Valid from:
10/12/2016 5:00:00 PM

Valid to:
6/8/2017 4:59:59 PM

Subject:
CN=Wenchao Zhang, 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:
435967CF8A9242810791B82F07AF2DEF

File PE Metadata
Compilation timestamp:
10/13/2016 2:45:42 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
12288:o0b9yp0DM+fAulO2H3or1Af/kysDNToExkLv:T9sEO2HG2sDNo8o

Entry address:
0x3F85C

Entry point:
E8, 94, 05, 00, 00, E9, 8E, FE, FF, FF, FF, 25, 64, 43, 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, 00, 48, 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, 00, 48, 00, 33, C5, 50, 89, 65, F0, FF, 75, FC, C7, 45...
 
[+]

Entropy:
6.3711

Code size:
394.5 KB (403,968 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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