Categories: Malware

ML/PE-A + Troj/Wonton-SR removal tips

The ML/PE-A + Troj/Wonton-SR 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 ML/PE-A + Troj/Wonton-SR virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Anomalous file deletion behavior detected (10+)
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Russian
  • Authenticode signature is invalid
  • Created a process from a suspicious location
  • Mimics icon used for popular non-executable file format

How to determine ML/PE-A + Troj/Wonton-SR?


File Info:

name: 10073737D64FAF6E08DD.mlwpath: /opt/CAPEv2/storage/binaries/50f17aaf0d2951d2940e7d7177e9e6c253afabdacb11ee659d6b329241580b43crc32: 76531E12md5: 10073737d64faf6e08dd392dc93947basha1: eec911ce08699f7189ef13e772adf1fe02116c67sha256: 50f17aaf0d2951d2940e7d7177e9e6c253afabdacb11ee659d6b329241580b43sha512: 816051a8b3d1939d08bbc1bc09932e334fc7260d0a511e4543b1cc044b45b74381ed9aafd91e7070672a0b9661caff8adf7748ab8cf2aaa3fb9c64f20f189205ssdeep: 1536:lDc2kE8H1Akjoc/4+hZuGj0Sgl0D8HxO6CGHSesE:l4bjoc9Fj0TBxOSHSutype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T102837EE3B8D5899DF5A7C170AEB58E2A52AF7CBF0834057FA2C415412979053D833ACBsha3_384: f20fbc20184eede2ce3eabb89080cbd3021352df57e0c098bf4ea4a826970c126cd208d91bbbc9dec05da05081fd5045ep_bytes: 558bec6aff68a8584000687c21400064timestamp: 2015-07-06 07:14:10

Version Info:

BuildVersion: 1, 7, 11, 21Translation: 0x0409 0x04b0

ML/PE-A + Troj/Wonton-SR also known as:

Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Upatre.EI
CAT-QuickHeal TrojanDownloader.Upatre.RF4
McAfee Upatre-FACR!10073737D64F
Cylance Unsafe
Zillya Downloader.UpatreGen.Win32.86
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan-Downloader ( 0056a5ff1 )
K7GW Trojan-Downloader ( 0056a5ff1 )
Cybereason malicious.7d64fa
Cyren W32/Upatre.BK.gen!Eldorado
Symantec Downloader.Upatre!g14
ESET-NOD32 Win32/TrojanDownloader.Waski.N
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Trojan-Downloader.Win32.Upatre.crer
BitDefender Trojan.Upatre.EI
NANO-Antivirus Trojan.Win32.RiskGen.dtotol
SUPERAntiSpyware Trojan.Agent/Gen-Upatre
Avast Win32:Malware-gen
Tencent Malware.Win32.Gencirc.10b40027
Ad-Aware Trojan.Upatre.EI
Sophos ML/PE-A + Troj/Wonton-SR
Comodo TrojWare.Win32.TrojanDownloader.Upatre.DLF@5t0aja
DrWeb Trojan.DownLoader14.35782
VIPRE Trojan-Downloader.Win32.Waski.mf (v)
McAfee-GW-Edition BehavesLike.Win32.PWSZbot.mt
Emsisoft Trojan.Upatre.EI (B)
SentinelOne Static AI – Suspicious PE
GData Trojan.Upatre.EI
Jiangmin TrojanDownloader.Upatre.rwl
eGambit Unsafe.AI_Score_99%
Avira TR/Ddlr.Upatre.MJ
Antiy-AVL Trojan/Generic.ASBOL.255D
ViRobot Trojan.Win32.Upatre.86016
Microsoft TrojanDownloader:Win32/Upatre
AhnLab-V3 Trojan/Win32.Fakeico.R156608
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34062.fqX@aWWVJupc
MAX malware (ai score=81)
VBA32 TrojanDownloader.Upatre
Malwarebytes Malware.AI.581296063
TrendMicro-HouseCall TROJ_UPATRE.SM37
Rising Malware.FakePDF/ICON!1.A24A (CLASSIC)
MaxSecure Trojan.Upatre.Gen
Fortinet W32/Waski.B!tr
Webroot Trojan.Dropper.Gen
AVG Win32:Malware-gen
Panda Trj/Downloader.IZF
CrowdStrike win/malicious_confidence_90% (D)

How to remove ML/PE-A + Troj/Wonton-SR?

  • 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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