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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-52-84-126-121.iad16.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Trend Corp.  (signed by Wenchao Zhang)

Product:
Trend Service

Description:
Service

Version:
3.0.0.64

MD5:
21b73fed87712dc7c40d8effaef76a3b

SHA-1:
9c3908f98ed2bfbe1ef7298230339f747253005b

SHA-256:
0165136ae9dd8e678c56520d2fbc35ba4f205574d670779121b3d3b08dd824ac

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/24/2024 3:00:50 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex (M)
16.9.19.11

File size:
200.7 KB (205,520 bytes)

Product version:
3.0.0.64

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:
9/19/2016 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:
3C088DA46AABF2F0B5C81C5D7DC76C57

File PE Metadata
Compilation timestamp:
9/18/2016 12:51:05 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
3072:lwkP2/flhR8uPXp3R7nfH6Rm2mAH9FYbAXo7ML8l2j2zMubDvPR:l72Rjh/imkoQL8l2Szhd

Entry address:
0x1AAC8

Entry point:
E8, 87, 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, CC, CC, 68, 69, 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...
 
[+]

Entropy:
6.2371

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-54-192-230-92.waw50.r.cloudfront.net  (54.192.230.92:80)

TCP (HTTP):
Connects to server-54-192-230-6.waw50.r.cloudfront.net  (54.192.230.6:80)

TCP (HTTP):
Connects to server-54-192-230-247.waw50.r.cloudfront.net  (54.192.230.247:80)

TCP (HTTP):
Connects to server-54-230-96-224.arn1.r.cloudfront.net  (54.230.96.224:80)

TCP (HTTP):
Connects to server-54-230-216-6.mrs50.r.cloudfront.net  (54.230.216.6:80)

TCP (HTTP):
Connects to server-54-192-25-187.mxp4.r.cloudfront.net  (54.192.25.187:80)

TCP (HTTP):
Connects to server-54-192-25-116.mxp4.r.cloudfront.net  (54.192.25.116:80)

TCP (HTTP):
Connects to server-52-85-74-90.lhr3.r.cloudfront.net  (52.85.74.90:80)

TCP (HTTP):
Connects to server-52-85-74-237.lhr3.r.cloudfront.net  (52.85.74.237:80)

TCP (HTTP):
Connects to server-52-85-74-227.lhr3.r.cloudfront.net  (52.85.74.227:80)

TCP (HTTP):
Connects to server-52-84-246-74.sfo20.r.cloudfront.net  (52.84.246.74:80)

TCP (HTTP):
Connects to server-54-192-25-50.mxp4.r.cloudfront.net  (54.192.25.50:80)

TCP (HTTP):
Connects to server-52-85-83-103.lax1.r.cloudfront.net  (52.85.83.103:80)

TCP (HTTP):
Connects to server-52-84-126-22.iad16.r.cloudfront.net  (52.84.126.22:80)

TCP (HTTP):
Connects to server-52-84-126-121.iad16.r.cloudfront.net  (52.84.126.121:80)

TCP (HTTP):
Connects to server-52-85-83-223.lax1.r.cloudfront.net  (52.85.83.223:80)

TCP (HTTP):
Connects to server-52-84-246-7.sfo20.r.cloudfront.net  (52.84.246.7:80)

TCP (HTTP):
Connects to server-54-239-132-238.sfo9.r.cloudfront.net  (54.239.132.238:80)

TCP (HTTP):
Connects to server-54-239-132-224.sfo9.r.cloudfront.net  (54.239.132.224:80)

TCP (HTTP):
Connects to server-54-239-132-173.sfo9.r.cloudfront.net  (54.239.132.173:80)

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