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tsvr.exe

Trend Service

Wenchao Zhang

The application tsvr.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 “IhPul”. While running, it connects to the Internet address server-52-85-77-121.lax3.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Trend Corp.  (signed by Wenchao Zhang)

Product:
Trend Service

Description:
Service

Version:
3.0.0.63

MD5:
6ae975b36e7b7a9b3f7c0d078508194a

SHA-1:
2a141722bfed7d1039c020b0a38a017a1f975247

SHA-256:
b324ac7fbd57058d4921be3a337be47dacd0497f92451018d98c86f5df57d7ff

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
5/19/2024 4:06:04 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex (M)
16.9.14.4

File size:
200.7 KB (205,520 bytes)

Product version:
3.0.0.63

Original file name:
TSvr

File type:
Executable application (Win32 EXE)

Language:
Chinese (Simplified, PRC)

Common path:
C:\users\{user}\appdata\roaming\setup1\tsvr.exe

Digital Signature
Signed by:
Wenchao Zhang

Authority:
thawte, Inc.

Valid from:
9/14/2016 5:30:00 AM

Valid to:
6/9/2017 5:29:59 AM

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:
4365346D7B9C9FBA0794AE79FFB1B070

File PE Metadata
Compilation timestamp:
9/13/2016 1:55:33 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
3072:4r3EiKw9JTCx3b0uopnfxB3RAT3rx/lpaMrgOH7zMcQv8:4rJ5OSJ90RgObzDQ

Entry address:
0x1AB2A

Entry point:
E8, 85, 02, 00, 00, E9, 03, FE, FF, FF, FF, 25, E0, E2, 41, 00, FF, 25, E4, E2, 41, 00, FF, 25, E8, E2, 41, 00, FF, 25, EC, E2, 41, 00, FF, 25, F0, E2, 41, 00, FF, 25, F4, E2, 41, 00, FF, 25, F8, E2, 41, 00, FF, 25, FC, E2, 41, 00, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 68, C9, AB, 41, 00, 64, FF, 35, 00, 00, 00, 00, 8B, 44, 24, 10, 89, 6C, 24, 10, 8D, 6C, 24, 10, 2B, E0, 53, 56, 57, A1, 00, 40, 42, 00, 31, 45, FC, 33, C5, 50, 89, 65, E8, FF, 75, F8, 8B, 45, FC, C7, 45, FC, FE, FF, FF, FF, 89, 45...
 
[+]

Entropy:
6.2399

Code size:
113 KB (115,712 bytes)

Service
Display name:
IhPul

Type:
Win32OwnProcess


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

TCP (HTTP):
Connects to server-54-192-130-190.ams50.r.cloudfront.net  (54.192.130.190:80)

TCP (HTTP):
Connects to server-54-192-130-14.ams50.r.cloudfront.net  (54.192.130.14:80)

TCP (HTTP):
Connects to server-54-192-3-44.lhr5.r.cloudfront.net  (54.192.3.44:80)

TCP (HTTP):
Connects to server-54-192-203-26.fra50.r.cloudfront.net  (54.192.203.26:80)

TCP (HTTP):
Connects to server-54-192-130-117.ams50.r.cloudfront.net  (54.192.130.117:80)

TCP (HTTP):
Connects to server-54-230-187-187.cdg51.r.cloudfront.net  (54.230.187.187:80)

TCP (HTTP):
Connects to server-54-192-3-243.lhr5.r.cloudfront.net  (54.192.3.243:80)

TCP (HTTP):
Connects to server-52-85-94-13.jfk5.r.cloudfront.net  (52.85.94.13:80)

TCP (HTTP):
Connects to server-54-192-3-39.lhr5.r.cloudfront.net  (54.192.3.39:80)

TCP (HTTP):
Connects to server-54-192-130-159.ams50.r.cloudfront.net  (54.192.130.159:80)

TCP (HTTP):
Connects to server-54-192-3-187.lhr5.r.cloudfront.net  (54.192.3.187:80)

TCP (HTTP):
Connects to server-54-192-130-27.ams50.r.cloudfront.net  (54.192.130.27:80)

TCP (HTTP):
Connects to server-54-230-216-91.mrs50.r.cloudfront.net  (54.230.216.91:80)

TCP (HTTP):
Connects to server-54-192-3-46.lhr5.r.cloudfront.net  (54.192.3.46:80)

TCP (HTTP):
Connects to server-54-192-3-236.lhr5.r.cloudfront.net  (54.192.3.236:80)

TCP (HTTP):
Connects to server-54-192-3-231.lhr5.r.cloudfront.net  (54.192.3.231:80)

TCP (HTTP):
Connects to server-52-85-94-6.jfk5.r.cloudfront.net  (52.85.94.6:80)

TCP (HTTP):
Connects to server-54-192-230-194.waw50.r.cloudfront.net  (54.192.230.194:80)

TCP (HTTP):
Connects to server-52-85-94-106.jfk5.r.cloudfront.net  (52.85.94.106:80)

TCP (HTTP):
Connects to server-54-192-130-28.ams50.r.cloudfront.net  (54.192.130.28:80)

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