Categories: Trojan

TrojanDownloader:Win32/Upatre!pz removal instruction

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
  • 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
  • CAPE detected the shellcode get eip malware family
  • Attempts to modify proxy settings
  • Anomalous binary characteristics
  • Yara detections observed in process dumps, payloads or dropped files

How to determine TrojanDownloader:Win32/Upatre!pz?


File Info:

name: C1D543DBBDC2D6933B73.mlwpath: /opt/CAPEv2/storage/binaries/69e8de2ea399370f5426de00b2697004d4aebf8e8e898fb10705df953d59d413crc32: 93D3F31Emd5: c1d543dbbdc2d6933b7395fcc21228d9sha1: cd0b3611c98d53dd92e34f92433ef0ae540ebe61sha256: 69e8de2ea399370f5426de00b2697004d4aebf8e8e898fb10705df953d59d413sha512: 250287cebc97c9e35b8578de01fc729f280dea47d36debb8df90332238a0a03548bbf2bf28286fa52fcab5441c6e888759119e03cc29cf67288cacf5b78ea24assdeep: 384:K+Ozz4Pz/uYpzATWZ5YpPaiTzELDr0+BBfBR02Ie+xVjOIImiN3Wdo9HDrxxHwmW:K+OoP6bIeabzLfn0TfVjOf1N3WoHDrNWtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1DEA3543C6ED52677E37BCAB6C5F645C7F925B42239129C0D40DB43840823F66ADE1A1Esha3_384: 8450648944ef6f5cec02e8e9b8416718495b54f9a10fb25cc05f9b432fac7fd17e842d56ee4d231419b8837697c11051ep_bytes: 558becb83c200000e893030000535657timestamp: 2013-09-11 14:39:41

Version Info:

0: [No Data]

TrojanDownloader:Win32/Upatre!pz also known as:

Bkav W32.AIDetectMalware
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Doina.1480
ClamAV Win.Trojan.Generic-9907715-0
FireEye Generic.mg.c1d543dbbdc2d693
CAT-QuickHeal Trojan.GenericCS.S24128547
Skyhigh BehavesLike.Win32.Infected.cz
McAfee Downloader-FBRM!C1D543DBBDC2
Malwarebytes Generic.Malware.AI.DDS
Zillya Downloader.Small.Win32.137540
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0052964f1 )
K7GW Trojan ( 0052964f1 )
BitDefenderTheta Gen:NN.ZexaF.36744.giY@aySfa8n
Symantec Downloader.Upatre!gm
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/TrojanDownloader.Small.PRL
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky VHO:Trojan-Downloader.Win32.Small.gen
BitDefender Gen:Variant.Doina.1480
NANO-Antivirus Trojan.Win32.DownLoad3.cqsjfu
Avast Win32:Downloader-WID [Trj]
Rising Downloader.Agent!1.E264 (CLASSIC)
Sophos Troj/Upatre-YW
Baidu Win32.Trojan-Downloader.Waski.k
F-Secure Trojan.TR/Patched.Ren.Gen
DrWeb Trojan.DownLoader26.64201
VIPRE Gen:Variant.Doina.1480
Trapmine malicious.high.ml.score
Emsisoft Gen:Variant.Doina.1480 (B)
Ikarus Trojan-Downloader.Win32.Upatre
GData Win32.Trojan-Downloader.Upatre.BJ
Jiangmin TrojanDownloader.Genome.acpr
Webroot W32.Malware.Gen
Google Detected
Avira TR/Patched.Ren.Gen
Antiy-AVL Trojan/Win32.Waski.a
Kingsoft malware.kb.a.999
Xcitium TrojWare.Win32.TrojanDownloader.Small.PRN@7tcee6
Arcabit Trojan.Doina.D5C8
ZoneAlarm VHO:Trojan-Downloader.Win32.Small.gen
Microsoft TrojanDownloader:Win32/Upatre!pz
Varist W32/SmallTrojan.CR.gen!Eldorado
AhnLab-V3 Downloader/Win.Upatre.R589472
Acronis suspicious
VBA32 Trojan.Downloader
ALYac Gen:Variant.Doina.1480
MAX malware (ai score=81)
Cylance unsafe
Panda Trj/Genetic.gen
Tencent Trojan-Downloader.Win32.Upatre.hbg
SentinelOne Static AI – Malicious PE
Fortinet W32/Tiny.NIV!tr
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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