Categories: Trojan

TrojanDownloader:Win32/Upatre.AF malicious file

The TrojanDownloader:Win32/Upatre.AF 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.AF virus can do?

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Anomalous file deletion behavior detected (10+)
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Greek
  • Authenticode signature is invalid
  • Anomalous binary characteristics

How to determine TrojanDownloader:Win32/Upatre.AF?


File Info:

name: 2B8D87F81B71FA394A6F.mlwpath: /opt/CAPEv2/storage/binaries/b28ed8aa458f8c98d4cd164ae3384c7bb49e0a185a17e65e73dff252c2192d03crc32: 8106AEB7md5: 2b8d87f81b71fa394a6ff2c381339d74sha1: 4955a80bc7b21ca4ed88310e3cb096e6c37e6e29sha256: b28ed8aa458f8c98d4cd164ae3384c7bb49e0a185a17e65e73dff252c2192d03sha512: b0184e4cdfc11c6ac0851813d6a7ccac171f0b3f58edfa7139539917c1ca7cc5122cb9efc6f57f94b9e515d41e832c93a254b0787ff8266a709f9085a0eafd2dssdeep: 192:cWxm/VXDmlzxCOkumxGyw3hv87N4t6bvJfcf3VIQgggggggggggggggbg66aKe3L:cNValzxpkDmRvXtJfG56n0OlGtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1A1B25EE941CCD566FE66053C9A7661838A79BDA3FF1905CF9D88310E0C337C6A53298Bsha3_384: 388911c553e3cf09a843727b2a4bf7bea5c26f1695716d004f9c25c11134af832e6b2c61b0a84e164a576cb65d9ff8f5ep_bytes: 558bec83ec085653b880294000e8d5fdtimestamp: 2011-08-20 15:36:33

Version Info:

CompanyName: SunfullFileDescription: Sunfull Ind.FileVersion: Version 1.3InternalName: SunfullLegalCopyright: Copyright by Sunfull Ind.OriginalFilename: SunfullTranslation: 0x0408 0x04b2

TrojanDownloader:Win32/Upatre.AF also known as:

Bkav W32.FamVT.GeND.Trojan
Elastic malicious (high confidence)
DrWeb Trojan.Upatre.100
MicroWorld-eScan Trojan.GenericKD.1934868
FireEye Generic.mg.2b8d87f81b71fa39
CAT-QuickHeal TrojanDwnldr.Upatre.AA4
ALYac Trojan.GenericKD.1934868
Cylance Unsafe
Zillya Downloader.Upatre.Win32.78
K7AntiVirus Trojan ( 004af9061 )
K7GW Trojan ( 004af9061 )
Cybereason malicious.81b71f
BitDefenderTheta Gen:NN.ZexaF.34294.bq1@a49p!3hO
Cyren W32/Trojan.JLIS-2341
Symantec Downloader.Upatre
ESET-NOD32 Win32/TrojanDownloader.Waski.A
TrendMicro-HouseCall TROJ_UPATRE.SM37
ClamAV Win.Trojan.Generickd-1143
Kaspersky Trojan.Win32.Agent.idxk
BitDefender Trojan.GenericKD.1934868
NANO-Antivirus Trojan.Win32.Upatre.dgyhwd
SUPERAntiSpyware Trojan.Agent/Gen-Downloader
Avast Win32:Agent-AUKO [Trj]
Tencent Trojan.Win32.BitCoinMiner.la
Ad-Aware Trojan.GenericKD.1934868
Sophos ML/PE-A + Troj/Mdrop-GHU
Comodo TrojWare.Win32.Kryptik.CNYX@5gkfaq
Baidu Win32.Trojan-Downloader.Waski.a
VIPRE Trojan.Win32.Kryptik.cnxo (v)
TrendMicro TROJ_UPATRE.SM37
McAfee-GW-Edition BehavesLike.Win32.Downloader.mm
Emsisoft Trojan.GenericKD.1934868 (B)
SentinelOne Static AI – Malicious PE
GData Trojan.GenericKD.1934868
Jiangmin TrojanDownloader.Upatre.gd
Avira TR/Visucius.82
MAX malware (ai score=83)
Antiy-AVL Trojan/Generic.ASMalwS.C7CD07
Microsoft TrojanDownloader:Win32/Upatre.AF
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Agent.R121876
Acronis suspicious
McAfee Upatre-FAAA!2B8D87F81B71
VBA32 TrojanDownloader.Upatre
Malwarebytes Trojan.Upatre
APEX Malicious
Rising Trojan.Generic@ML.98 (RDML:so/j4dS9r8omIyLN5w71IA)
Ikarus Trojan-Downloader.Win32.Upatre
Fortinet W32/Upatre.BTC!tr
AVG Win32:Agent-AUKO [Trj]
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_100% (D)
MaxSecure Trojan.Upatre.Gen

How to remove TrojanDownloader:Win32/Upatre.AF?

  • 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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