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qusaied.dll

Ding Ruan

The module qusaied.dll by Ding Ruan has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Ding Ruan  (signed and verified)

MD5:
e0f4c586f05ac48eb58c974ced94a75b

SHA-1:
718e60697e17c85b308d48c2ab21af8dfcaf7d14

SHA-256:
d265f74e5d43659630968c2a18fe720af85accd5952191dc99ba3099f6496a34

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
10/13/2025 6:20:49 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX.DingRuan (M)
16.6.9.15

File size:
334.7 KB (342,712 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\users\{user}\appdata\roaming\microsoft\windows\cookies\qusaied.dll

Digital Signature
Signed by:
Ding Ruan

Authority:
thawte, Inc.

Valid from:
6/8/2016 7:00:00 AM

Valid to:
4/14/2017 6:59:59 AM

Subject:
CN=Ding Ruan, 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:
4966675A6A75F79007CB0CD636B71CF5

Registration
CLSID:
{98C066AB-D735-4339-9E52-A34875141B56}

COM registered:
Yes

File PE Metadata
Compilation timestamp:
6/7/2016 9:42:41 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
6144:4W17XGzVXB/VAA1wI2FjKgxtViLrCgXIv6gVTBq8Oz33E5Prp:4WpitYFjrQrCgYv5Ts8qsrp

Entry address:
0x1D459

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 6C, 6E, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, A8, 23, 04, 10, E8, 88, 55, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, C4, EF, 04, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, 8C, 21, 03, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.7688

Developed / compiled with:
Microsoft Visual C++

Code size:
189.5 KB (194,048 bytes)

Shell Execute Hook
Name:
{98C066AB-D735-4339-9E52-A34875141B56}


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