Categories: Trojan

What is “TrojanDownloader:Win32/Upatre!pz”?

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
  • Authenticode signature is invalid
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Attempts to modify proxy settings

How to determine TrojanDownloader:Win32/Upatre!pz?


File Info:

name: 3B79407749DA17CEEB6C.mlwpath: /opt/CAPEv2/storage/binaries/86758c4a6d7324d203b141294c6116d35aa70e24aaf8610ef4964f3d5d3d6148crc32: F84A6616md5: 3b79407749da17ceeb6cbe5eb07d51a1sha1: 756246fdd2030820ec72a058cdc0a6097f88e1cesha256: 86758c4a6d7324d203b141294c6116d35aa70e24aaf8610ef4964f3d5d3d6148sha512: 9e2c0665fa6ca7fcf9be698533feec0101a9961cf772040d18bc399756d9d8374955ec53896435798a30a8837df73b0a74d10c38486427bbfbc5327f0dc4f45dssdeep: 768:XYqTTIINYPjrxIF0GKZ15f8TeCA4SR/sAxSTKDTho00LEqDT6:XYcNY0KZrtBxSTKRo0gEi6type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T16403DF3C5ED51676E37BCAB6C6F645C7B965B42339029CCE40CB43810823F66BDA1A1Esha3_384: 24bbe28c5757b97049187600b9b5ec1b82d9d3f40043743a9bb29c6c91351ed186bfb517ea681d93c0ef2d35f3a7fb28ep_bytes: b800624000ffe088f8a8d46994d9b7f5timestamp: 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.Ppatre.Gen.1
ClamAV Win.Malware.Ppatre-7112288-0
CAT-QuickHeal Trojan.Mauvaise.SL1
Skyhigh BehavesLike.Win32.Generic.nt
McAfee GenericRXIH-XP!3B79407749DA
Cylance unsafe
Zillya Downloader.Generic.Win32.8667
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005568151 )
K7GW Trojan ( 005568151 )
CrowdStrike win/malicious_confidence_100% (D)
Symantec Downloader.Upatre!gm
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/TrojanDownloader.Small.PRL
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ppatre.Gen.1
Avast Win32:TrojanX-gen [Trj]
Tencent Trojan-DL.Win32.Upatre.kaj
Emsisoft Trojan.Ppatre.Gen.1 (B)
F-Secure Trojan.TR/Dropper.Gen
DrWeb Trojan.DownLoader26.64201
VIPRE Trojan.Ppatre.Gen.1
TrendMicro TROJ_UPATRE.SMAZ
FireEye Generic.mg.3b79407749da17ce
Sophos W32/Systro-AB
SentinelOne Static AI – Malicious PE
GData Win32.Trojan-Downloader.Upatre.BJ
Jiangmin Trojan.Generic.dunym
Google Detected
Avira TR/Dropper.Gen
MAX malware (ai score=83)
Antiy-AVL Trojan[Downloader]/Win32.Upatre
Kingsoft malware.kb.a.1000
Xcitium TrojWare.Win32.TrojanDownloader.Upatre.ACC@56yhj8
Arcabit Trojan.Ppatre.Gen.1
ZoneAlarm VHO:Trojan-Downloader.Win32.Waski.gen
Microsoft TrojanDownloader:Win32/Upatre!pz
Varist W32/S-5aba6b96!Eldorado
AhnLab-V3 Trojan/Win32.Upatre.R289382
Acronis suspicious
BitDefenderTheta AI:Packer.949826341E
ALYac Trojan.Ppatre.Gen.1
VBA32 Trojan.Downloader
Malwarebytes Generic.Malware.AI.DDS
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_UPATRE.SMAZ
Rising Worm.Soltern!1.BB24 (CLASSIC)
Yandex Trojan.GenAsa!LXiB97J6ZtU
Ikarus Trojan-Downloader.Win32.Small
MaxSecure Trojan.Malware.121218.susgen
Fortinet W32/Parite.C
AVG Win32:TrojanX-gen [Trj]
Cybereason malicious.dd2030
DeepInstinct MALICIOUS

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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