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chxzq.exe

Shulan Hou

The application chxzq.exe by Shulan Hou has been detected as adware 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 “Install Service(EastfatDL)”. It is also typically executed from the user's temporary directory.
Publisher:
Shulan Hou  (signed and verified)

MD5:
6f36c875045d9486e67417e0e9063dba

SHA-1:
c2eaf5a48bcbf324e60f547f7ebbbe37a5677f4e

SHA-256:
fe29622abe187a3f67e08f7f79cff631f61ad6dcf4c7c65d9423ce8a8736badc

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
9/18/2025 4:53:07 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX (M)
16.9.17.19

File size:
498.4 KB (510,336 bytes)

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\tools\chxzq.exe

Digital Signature
Signed by:
Shulan Hou

Authority:
thawte, Inc.

Valid from:
7/18/2016 1:00:00 AM

Valid to:
6/14/2017 12:59:59 AM

Subject:
CN=Shulan Hou, 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:
7EE5795A0606334F3F5F4404E28BDA9C

File PE Metadata
Compilation timestamp:
7/22/2016 3:40:33 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
6144:u2S2gpB6wwdi27BXwM8LvwuFcB9OzNwB1cVLrqX+N1rj8AKSsntskkDX:uP2gSwNeyvjFo9Oz4uVIACnGkkb

Entry address:
0x38198

Entry point:
E8, 0E, 08, 00, 00, E9, 80, FE, FF, FF, FF, 25, A4, A3, 45, 00, 8B, 4D, F4, 64, 89, 0D, 00, 00, 00, 00, 59, 5F, 5F, 5E, 5B, 8B, E5, 5D, 51, F2, C3, 8B, 4D, F0, 33, CD, F2, E8, 5D, F8, FF, FF, F2, E9, DA, FF, FF, FF, 8B, 4D, EC, 33, CD, F2, E8, 4C, F8, FF, FF, F2, E9, C9, FF, FF, FF, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53, 56, 57, 89, 28, 8B, E8, A1, BC, 21, 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...
 
[+]

Code size:
352.5 KB (360,960 bytes)

Service
Display name:
Install Service(EastfatDL)

Service name:
EastfatDL

Description:
To ensure browser softwareinstallation is completed.This service uninstallsitself after browsersoftware installed.

Type:
Win32OwnProcess

Depends on:
RpcSs


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