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atsupdtsk.exe

Ding Ruan

The application atsupdtsk.exe 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. It runs as a scheduled task under the Windows Task Scheduler triggered daily at a specified time. While running, it connects to the Internet address server-54-230-95-148.fra2.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Ding Ruan  (signed and verified)

MD5:
250f89807b256d481d231102d983c6e3

SHA-1:
45bb4447ff8d53964bff77425d9fd6d10bad601b

SHA-256:
5b6a7a6503167d50e4d396521f9c31e6ccefa3758f52b5d82b7ce5a57100fb33

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
10/13/2025 1:57:36 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX.DingRuan (M)
16.6.9.15

File size:
352.6 KB (361,112 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\atusogh\atsupdtsk.exe

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

File PE Metadata
Compilation timestamp:
6/8/2016 3:45:27 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
6144:rMBiF9vcighdm7SFvrLGQ+WtM3BYFq1F70Sgdoih4m:YBiFJctdhFvt+lYg37Sdoih4m

Entry address:
0x23E85

Entry point:
E8, 33, 59, 00, 00, E9, 7F, FE, FF, FF, CC, 8B, 54, 24, 0C, 8B, 4C, 24, 04, 85, D2, 74, 7F, 0F, B6, 44, 24, 08, 0F, BA, 25, 94, 42, 45, 00, 01, 73, 0D, 8B, 4C, 24, 0C, 57, 8B, 7C, 24, 08, F3, AA, EB, 5D, 8B, 54, 24, 0C, 81, FA, 80, 00, 00, 00, 7C, 0E, 0F, BA, 25, 00, 23, 45, 00, 01, 0F, 82, 52, 5E, 00, 00, 57, 8B, F9, 83, FA, 04, 72, 31, F7, D9, 83, E1, 03, 74, 0C, 2B, D1, 88, 07, 83, C7, 01, 83, E9, 01, 75, F6, 8B, C8, C1, E0, 08, 03, C1, 8B, C8, C1, E0, 10, 03, C1, 8B, CA, 83, E2, 03, C1, E9, 02, 74, 06...
 
[+]

Entropy:
6.5151

Code size:
264 KB (270,336 bytes)

Scheduled Task
Task name:
Atusogh Update

Trigger:
Daily (Runs daily at 12:21 AM)

Description:
Check the new feathers of Atusogh, and nodify to you.


The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to server-54-230-95-240.fra2.r.cloudfront.net  (54.230.95.240:80)

TCP (HTTP):
Connects to server-54-230-95-165.fra2.r.cloudfront.net  (54.230.95.165:80)

TCP (HTTP):
Connects to server-54-230-95-62.fra2.r.cloudfront.net  (54.230.95.62:80)

TCP (HTTP):
Connects to server-54-230-95-241.fra2.r.cloudfront.net  (54.230.95.241:80)

TCP (HTTP):
Connects to server-54-230-95-236.fra2.r.cloudfront.net  (54.230.95.236:80)

TCP (HTTP):
Connects to server-54-230-95-183.fra2.r.cloudfront.net  (54.230.95.183:80)

TCP (HTTP):
Connects to server-54-230-187-89.cdg51.r.cloudfront.net  (54.230.187.89:80)

TCP (HTTP):
Connects to server-54-192-130-225.ams50.r.cloudfront.net  (54.192.130.225:80)

TCP (HTTP):
Connects to server-54-230-95-148.fra2.r.cloudfront.net  (54.230.95.148:80)

TCP (HTTP):
Connects to server-54-230-216-146.mrs50.r.cloudfront.net  (54.230.216.146:80)

TCP (HTTP):
Connects to server-54-230-216-10.mrs50.r.cloudfront.net  (54.230.216.10:80)

TCP (HTTP):
Connects to server-54-230-187-198.cdg51.r.cloudfront.net  (54.230.187.198:80)

TCP (HTTP):
Connects to server-54-230-187-117.cdg51.r.cloudfront.net  (54.230.187.117:80)

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