Categories: Trojan

TrojanDownloader:Win32/Upatre!pz removal tips

The TrojanDownloader:Win32/Upatre!pz is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What TrojanDownloader:Win32/Upatre!pz virus can do?

  • Sample contains Overlay data
  • Performs HTTP requests potentially not found in PCAP.
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • Executable file is packed/obfuscated with MPRESS
  • Authenticode signature is invalid
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Attempts to modify proxy settings
  • Anomalous binary characteristics
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine TrojanDownloader:Win32/Upatre!pz?


File Info:

name: 89AFE787FCEB4872E8E8.mlwpath: /opt/CAPEv2/storage/binaries/cc956f9e21f5ca7dce1d75a98b3aa2be0e88a9f616ee35d07c4f8e296e685568crc32: 830A587Fmd5: 89afe787fceb4872e8e8cd7c5cbbece5sha1: e2bddd31d8dbf8421d1beee2769145c199ebf603sha256: cc956f9e21f5ca7dce1d75a98b3aa2be0e88a9f616ee35d07c4f8e296e685568sha512: 7508a033bf55013438a581465c8ee3bf8df2e22b8a615ade3e5053278cb909d5fa696a18f197b6903a88de987a318a471205d54c897867fb5b742d05269576f6ssdeep: 384:K+Ozz4Pz/uYpzATWZ5YpPaiTzELDr0+BBfBR02Ie+xVjOIImiN3lE:K+OoP6bIeabzLfn0TfVjOf1N3ytype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1D9A3873C2FD55A77E37BCAB6C5F245C7F935B4223912980D40DB43440823FA6ADA1A1Esha3_384: 668c3025e2ec6387eefa81eeae6e3ebcfdfdb25dee00abff7551c2c46d2d022cb16363db33046efcc370e042da19d7b9ep_bytes: 558becb83c200000e893030000535657timestamp: 2013-09-11 14:39:41

Version Info:

0: [No Data]

TrojanDownloader:Win32/Upatre!pz also known as:

Bkav W32.AIDetectMalware
tehtris Generic.Malware
MicroWorld-eScan Trojan.GenericKD.48063313
CAT-QuickHeal Trojan.GenericCS.S24128547
Skyhigh BehavesLike.Win32.Infected.nz
McAfee Downloader-FBRM!89AFE787FCEB
Cylance unsafe
VIPRE Trojan.GenericKD.48063313
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0052964f1 )
K7GW Trojan ( 0052964f1 )
Cybereason malicious.1d8dbf
Arcabit Trojan.Generic.D2DD6351
Baidu Win32.Trojan-Downloader.Waski.k
Symantec Downloader.Upatre!gm
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/TrojanDownloader.Small.PRL
Cynet Malicious (score: 100)
APEX Malicious
ClamAV Win.Trojan.Generic-9907715-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.GenericKD.48063313
NANO-Antivirus Trojan.Win32.DownLoad3.cqsjfu
Avast Win32:Downloader-WID [Trj]
Tencent Trojan-Downloader.Win32.Small.he
Emsisoft Trojan.GenericKD.48063313 (B)
F-Secure Trojan.TR/Patched.Ren.Gen
DrWeb Trojan.DownLoader26.64201
Zillya Downloader.Small.Win32.137540
FireEye Generic.mg.89afe787fceb4872
Sophos Troj/Upatre-YW
SentinelOne Static AI – Malicious PE
Jiangmin TrojanDownloader.Genome.acpr
Webroot W32.Malware.Gen
Varist W32/SmallTrojan.CR.gen!Eldorado
Avira TR/Patched.Ren.Gen
MAX malware (ai score=86)
Antiy-AVL Trojan/Win32.Waski.a
Kingsoft malware.kb.a.999
Xcitium TrojWare.Win32.TrojanDownloader.Small.PRN@7tcee6
Microsoft TrojanDownloader:Win32/Upatre!pz
ZoneAlarm VHO:Trojan-Downloader.Win32.Small.gen
GData Win32.Trojan-Downloader.Upatre.BJ
Google Detected
AhnLab-V3 Downloader/Win.Upatre.R589472
Acronis suspicious
VBA32 Trojan.Downloader
Malwarebytes Generic.Malware.AI.DDS
Panda Trj/Genetic.gen
Rising Downloader.Agent!1.E264 (CLASSIC)
Yandex Trojan.DL.Small!dssFdhTXVBw
Ikarus Trojan-Downloader.Win32.Small
MaxSecure Trojan.Upatre.Gen
Fortinet W32/Tiny.NIV!tr
BitDefenderTheta Gen:NN.ZexaF.36680.giY@aySfa8n
AVG Win32:Downloader-WID [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (D)

How to remove TrojanDownloader:Win32/Upatre!pz?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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